ITEM NAME:25.4mm 1" Dual-Wall 3:1 Adhesive Lined Heat Shrink Tubing Sleeving 4Ft A7F4 25.4mm 1" Dual-Wall 3:1 Adhesive Lined Heat Shrink Tubing Sleeving 4Ft A7F4 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. Rated voltage:600V material: polyolefin Ratio: 3:1; flat width: 40mm/1.6 Inch (before shrinkage) round diameter: 25.4mm/1 inch Thickness: 0.75mm(before shrinkage),2.1mm(after shrinkage) shrink temperature: 80 Celsius fit for: appliance/Auto wire harness Each Length: 1.22M/ 4Ft temperature range: -55 Celsius to +125 Celsius Net weight: 70G main color: black 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.