Heat Shrink Tubing size chart The 4:1 shrink ratio perfectly suit odd or big parts of military, aerospace, and electronic instruments. Feature: 鈼?Shrink Ratio: 4:1 鈼?Material: Crosslinked polyolefin 鈼?Flame-retardant 鈼?Halogen Free 鈼?RoHS Compliant 鈼?Reach Compliant 鈼?Resists water, moisture, high temperature, and humidity 鈼?Easy and quick installation 鈼?Colors: Black. If you have special need, please indicate. Details DASITE produce 4:1 middle-wall heat shrink tube as below: ITEM NO.Expanded diameterFull recovered InchmmDiameter(mm)Wall thickness(mm) DST-4STP-19D1F3/419.14.81.8 DST-4STP-25D4F125.471.8 DST-4STP-38D1F11/ DST-4STP-50D8F250.8141.8 DST-4STP-76D2F376.221.31.8 DST-4STP-101D6F4101.626.71.9 DST-4STP-114D3F41/2114.336.81.9 If you do not see your required configuration, please contact us.Heat Shrink Tubing size chart website:http://www.dsttube.com/heat-shrink-tubing/