ITEM NAME:7.9mm 5/16" Dual-Wall 3:1 Adhesive Lined Waterproof Heat Shrink Tubing G8L6 7.9mm 5/16" Dual-Wall 3:1 Adhesive Lined Waterproof Heat Shrink Tubing G8L6 Heating tool: hot air gun. dual-wall, adhesive lined, waterproof, insulation, soft, stable performance, low temperature shrinkage, shrinking fast, etc. Appliance: used for appliance/auto electric wire cable harness wrapping. main color: Blue Ratio: 3:1 Rated voltage:3000V inner die: 7.9mm/5/16Inch (before shrink), 2.9mm (after shrink) Thickness: 0.5Mm(before shrinkage),1.4Mm(after shrinkage) shrink temperature: 80 Celsius Total Length: 2M/ 6.56Ft temperature range: -55 Celsius to +125 Celsius material: polyolefin Net weight: 44G package content: 1 x heat shrink tubing Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.