17/07/2024

Heat Shrink Tubing

Heat shrink tubing is a simple and safe solution for insulation and protection of wires, cables, connections, terminals and components. It is a flexible tube that shrinks in diameter and increases in thickness when heated. In this way, it shrinks tightly around the cable or connector and provides excellent insulating properties. A variety of materials are available to meet specific technical requirements: polyolefin (POX), elastomer (PES), fluoropolymer (FPM), polyvinylidene fluoride (PVDF) and polytetrafluoroethylene (PTFE), etc. Heat shrink tubing is available in many colours including "clear". Variants are thin wall, medium wall and thick wall tubings. Dual-Wall variants are also available; this term is used for heatshrinks that already include adhesive. Our shrink ratios range from 2:1 to 6:1.


950 продукти

Нулиране на всички
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-1.5/0.5-PO-X-WH 333-30159
Сравнете
30 metre
White (WH) TF31-1.5/0.5-PO-X-WH 333-30159
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-RD 333-20302
Сравнете
300 metre
Red (RD) TF31-3/1-PO-X-RD 333-20302
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-YE 333-20304
Сравнете
300 metre
Yellow (YE) TF31-3/1-PO-X-YE 333-20304
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-GN 333-20305
Сравнете
300
Green (GN) TF31-3/1-PO-X-GN 333-20305
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-BU 333-20306
Сравнете
300 metre
Blue (BU) TF31-3/1-PO-X-BU 333-20306
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-WH 333-20309
Сравнете
300 metre
White (WH) TF31-3/1-PO-X-WH 333-20309
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-BK 333-30300
Сравнете
30 metre
Black (BK) TF31-3/1-PO-X-BK 333-30300
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-RD 333-30302
Сравнете
30 metre
Red (RD) TF31-3/1-PO-X-RD 333-30302
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-YE 333-30304
Сравнете
30 metre
Yellow (YE) TF31-3/1-PO-X-YE 333-30304
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-GN 333-30305
Сравнете
30 metre
Green (GN) TF31-3/1-PO-X-GN 333-30305
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-BU 333-30306
Сравнете
30 metre
Blue (BU) TF31-3/1-PO-X-BU 333-30306
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-GNYE 333-30307
Сравнете
30 metre
Green-Yellow (GNYE) TF31-3/1-PO-X-GNYE 333-30307
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-WH 333-30309
Сравнете
30 metre
White (WH) TF31-3/1-PO-X-WH 333-30309
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-3/1-PO-X-BK 333-40300
Сравнете
150 metre
Black (BK) TF31-3/1-PO-X-BK 333-40300
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-GN 333-20605
Сравнете
300
Green (GN) TF31-6/2-PO-X-GN 333-20605
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-BK 333-30600
Сравнете
30 metre
Black (BK) TF31-6/2-PO-X-BK 333-30600
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-RD 333-30602
Сравнете
30 metre
Red (RD) TF31-6/2-PO-X-RD 333-30602
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-YE 333-30604
Сравнете
30 metre
Yellow (YE) TF31-6/2-PO-X-YE 333-30604
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-GN 333-30605
Сравнете
30 metre
Green (GN) TF31-6/2-PO-X-GN 333-30605
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-BU 333-30606
Сравнете
30 metre
Blue (BU) TF31-6/2-PO-X-BU 333-30606
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-GNYE 333-30607
Сравнете
30 metre
Green-Yellow (GNYE) TF31-6/2-PO-X-GNYE 333-30607
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-WH 333-30609
Сравнете
30 metre
White (WH) TF31-6/2-PO-X-WH 333-30609
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-6/2-PO-X-BK 333-40600
Сравнете
150 metre
Black (BK) TF31-6/2-PO-X-BK 333-40600
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-BK 333-20900
Сравнете
150 metre
Black (BK) TF31-9/3-PO-X-BK 333-20900
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-RD 333-20902
Сравнете
150 metre
Red (RD) TF31-9/3-PO-X-RD 333-20902
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-YE 333-20904
Сравнете
1 metre
Yellow (YE) TF31-9/3-PO-X-YE 333-20904
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-BU 333-20906
Сравнете
150 metre
Blue (BU) TF31-9/3-PO-X-BU 333-20906
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-WH 333-20909
Сравнете
1 metre
White (WH) TF31-9/3-PO-X-WH 333-20909
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-BK 333-30900
Сравнете
30 metre
Black (BK) TF31-9/3-PO-X-BK 333-30900
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-RD 333-30902
Сравнете
30 metre
Red (RD) TF31-9/3-PO-X-RD 333-30902
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-YE 333-30904
Сравнете
30 metre
Yellow (YE) TF31-9/3-PO-X-YE 333-30904
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-GN 333-30905
Сравнете
30 metre
Green (GN) TF31-9/3-PO-X-GN 333-30905
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-BU 333-30906
Сравнете
30 metre
Blue (BU) TF31-9/3-PO-X-BU 333-30906
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-WH 333-30909
Сравнете
30 metre
White (WH) TF31-9/3-PO-X-WH 333-30909
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-9/3-PO-X-GNYE 333-30907
Сравнете
30 metre
Green-Yellow (GNYE) TF31-9/3-PO-X-GNYE 333-30907
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-BK 333-21200
Сравнете
100 metre
Black (BK) TF31-12/4-PO-X-BK 333-21200
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-RD 333-21202
Сравнете
100 metre
Red (RD) TF31-12/4-PO-X-RD 333-21202
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-YE 333-21204
Сравнете
100 metre
Yellow (YE) TF31-12/4-PO-X-YE 333-21204
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-GN 333-21205
Сравнете
100
Green (GN) TF31-12/4-PO-X-GN 333-21205
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-BU 333-21206
Сравнете
100 metre
Blue (BU) TF31-12/4-PO-X-BU 333-21206
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-WH 333-21209
Сравнете
100 metre
White (WH) TF31-12/4-PO-X-WH 333-21209
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-BK 333-31200
Сравнете
30 metre
Black (BK) TF31-12/4-PO-X-BK 333-31200
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-RD 333-31202
Сравнете
30 metre
Red (RD) TF31-12/4-PO-X-RD 333-31202
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-YE 333-31204
Сравнете
30 metre
Yellow (YE) TF31-12/4-PO-X-YE 333-31204
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-GN 333-31205
Сравнете
30 metre
Green (GN) TF31-12/4-PO-X-GN 333-31205
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-BU 333-31206
Сравнете
30 metre
Blue (BU) TF31-12/4-PO-X-BU 333-31206
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-GNYE 333-31207
Сравнете
30 metre
Green-Yellow (GNYE) TF31-12/4-PO-X-GNYE 333-31207
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-12/4-PO-X-WH 333-31209
Сравнете
30 metre
White (WH) TF31-12/4-PO-X-WH 333-31209
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-RD 333-21802
Сравнете
50 metre
Red (RD) TF31-18/6-PO-X-RD 333-21802
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-YE 333-21804
Сравнете
50 metre
Yellow (YE) TF31-18/6-PO-X-YE 333-21804
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-GN 333-21805
Сравнете
50
Green (GN) TF31-18/6-PO-X-GN 333-21805
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-BU 333-21806
Сравнете
50 metre
Blue (BU) TF31-18/6-PO-X-BU 333-21806
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-WH 333-21809
Сравнете
50 metre
White (WH) TF31-18/6-PO-X-WH 333-21809
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-BK 333-31800
Сравнете
30 metre
Black (BK) TF31-18/6-PO-X-BK 333-31800
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-RD 333-31802
Сравнете
30 metre
Red (RD) TF31-18/6-PO-X-RD 333-31802
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-YE 333-31804
Сравнете
30 metre
Yellow (YE) TF31-18/6-PO-X-YE 333-31804
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-18/6-PO-X-GN 333-31805
Сравнете
30 metre
Green (GN) TF31-18/6-PO-X-GN 333-31805
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-RD 333-22402
Сравнете
50 metre
Red (RD) TF31-24/8-PO-X-RD 333-22402
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-YE 333-22404
Сравнете
50 metre
Yellow (YE) TF31-24/8-PO-X-YE 333-22404
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-GN 333-22405
Сравнете
50
Green (GN) TF31-24/8-PO-X-GN 333-22405
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-BU 333-22406
Сравнете
50 metre
Blue (BU) TF31-24/8-PO-X-BU 333-22406
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-WH 333-22409
Сравнете
50 metre
White (WH) TF31-24/8-PO-X-WH 333-22409
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-BK 333-32400
Сравнете
30 metre
Black (BK) TF31-24/8-PO-X-BK 333-32400
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-RD 333-32402
Сравнете
30 metre
Red (RD) TF31-24/8-PO-X-RD 333-32402
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-YE 333-32404
Сравнете
30 metre
Yellow (YE) TF31-24/8-PO-X-YE 333-32404
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-GN 333-32405
Сравнете
30 metre
Green (GN) TF31-24/8-PO-X-GN 333-32405
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-BU 333-32406
Сравнете
30 metre
Blue (BU) TF31-24/8-PO-X-BU 333-32406
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-GNYE 333-32407
Сравнете
30 metre
Green-Yellow (GNYE) TF31-24/8-PO-X-GNYE 333-32407
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-WH 333-32409
Сравнете
30 metre
White (WH) TF31-24/8-PO-X-WH 333-32409
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-24/8-PO-X-BK 333-42400
Сравнете
60 metre
Black (BK) TF31-24/8-PO-X-BK 333-42400
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-BK 333-24000
Сравнете
60 metre
Black (BK) TF31-40/13-PO-X-BK 333-24000
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-RD 333-24002
Сравнете
60 metre
Red (RD) TF31-40/13-PO-X-RD 333-24002
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-YE 333-24004
Сравнете
60 metre
Yellow (YE) TF31-40/13-PO-X-YE 333-24004
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-GN 333-24005
Сравнете
60
Green (GN) TF31-40/13-PO-X-GN 333-24005
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-WH 333-24009
Сравнете
60 metre
White (WH) TF31-40/13-PO-X-WH 333-24009
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-BK 333-34000
Сравнете
30 metre
Black (BK) TF31-40/13-PO-X-BK 333-34000
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-RD 333-34002
Сравнете
30 metre
Red (RD) TF31-40/13-PO-X-RD 333-34002
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-YE 333-34004
Сравнете
30 metre
Yellow (YE) TF31-40/13-PO-X-YE 333-34004
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-GN 333-34005
Сравнете
30 metre
Green (GN) TF31-40/13-PO-X-GN 333-34005
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-BU 333-34006
Сравнете
30 metre
Blue (BU) TF31-40/13-PO-X-BU 333-34006
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-GNYE 333-34007
Сравнете
30 metre
Green-Yellow (GNYE) TF31-40/13-PO-X-GNYE 333-34007
Polyolefin heat shrink tubing resists most common oils, chemicals and fluids.
Сравнете
TF31-40/13-PO-X-WH 333-34009
Сравнете
30 metre
White (WH) TF31-40/13-PO-X-WH 333-34009
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-1.5/0.5-PO-X-CL 333-30153
Сравнете
30 metre
Transparent (CL) TF34-1.5/0.5-PO-X-CL 333-30153
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-1.5/0.5-PO-X-CL 333-20153
Сравнете
300 m
Transparent (CL) TF34-1.5/0.5-PO-X-CL 333-20153
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-3/1-PO-X-CL 333-20303
Сравнете
150 m
Transparent (CL) TF34-3/1-PO-X-CL 333-20303
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-6/2-PO-X-CL 333-30603
Сравнете
30 metre
Transparent (CL) TF34-6/2-PO-X-CL 333-30603
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-6/2-PO-X-CL 333-20603
Сравнете
60 m
Transparent (CL) TF34-6/2-PO-X-CL 333-20603
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-9/3-PO-X-CL 333-30903
Сравнете
30 metre
Transparent (CL) TF34-9/3-PO-X-CL 333-30903
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-9/3-PO-X-CL 333-20903
Сравнете
60 m
Transparent (CL) TF34-9/3-PO-X-CL 333-20903
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-12/4-PO-X-CL 333-31203
Сравнете
30 metre
Transparent (CL) TF34-12/4-PO-X-CL 333-31203
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-12/4-PO-X-CL 333-21203
Сравнете
60 m
Transparent (CL) TF34-12/4-PO-X-CL 333-21203
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-18/6-PO-X-CL 333-31803
Сравнете
30 metre
Transparent (CL) TF34-18/6-PO-X-CL 333-31803
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-18/6-PO-X-CL 333-21803
Сравнете
60 m
Transparent (CL) TF34-18/6-PO-X-CL 333-21803
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-24/8-PO-X-CL 333-32403
Сравнете
30 metre
Transparent (CL) TF34-24/8-PO-X-CL 333-32403
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-24/8-PO-X-CL 333-22403
Сравнете
60 m
Transparent (CL) TF34-24/8-PO-X-CL 333-22403
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-40/13-PO-X-CL 333-34003
Сравнете
30 metre
Transparent (CL) TF34-40/13-PO-X-CL 333-34003
3:1 shrink ratio tubing is ideal in many applications.
Сравнете
TF34-40/13-PO-X-CL 333-24003
Сравнете
60 m
Transparent (CL) TF34-40/13-PO-X-CL 333-24003
Clear high temperature PTFE Heat Shrink Tubing TFE2 (2:1) & TFE4 (4:1).
Сравнете
TFE2-30-PTFE-CL 336-00079
Сравнете
50 pcs.
Transparent (CL) TFE2-30-PTFE-CL 336-00079
Clear high temperature PTFE Heat Shrink Tubing TFE2 (2:1) & TFE4 (4:1).
Сравнете
TFE2-28-PTFE-CL 336-00099
Сравнете
50 pcs.
Transparent (CL) TFE2-28-PTFE-CL 336-00099
Clear high temperature PTFE Heat Shrink Tubing TFE2 (2:1) & TFE4 (4:1).
Сравнете
TFE2-26-PTFE-CL 336-00109
Сравнете
50 pcs.
Transparent (CL) TFE2-26-PTFE-CL 336-00109

Heat Shrink Tubing

Heat shrink tubing is a simple and safe solution for insulation and protection of wires, cables, connections, terminals and components. It is a flexible tube that shrinks in diameter and increases in thickness when heated. In this way, it shrinks tightly around the cable or connector and provides excellent insulating properties. A variety of materials are available to meet specific technical requirements: polyolefin (POX), elastomer (PES), fluoropolymer (FPM), polyvinylidene fluoride (PVDF) and polytetrafluoroethylene (PTFE), etc. Heat shrink tubing is available in many colours including "clear". Variants are thin wall, medium wall and thick wall tubings. Dual-Wall variants are also available; this term is used for heatshrinks that already include adhesive. Our shrink ratios range from 2:1 to 6:1.