1,PVC heat shrink tubing uses a thin-wall, low cost material offering good electrical and mechanical characteristics. 2,Applications include insulation and jacketing of batteries, capacitors and similar objects-a vast range of applications in the production of industrial equipment, toys, sporting goods, electronics, and consumer products. 3,Flame retardant, environmental protection, insulation, soft, stable performance, low temperature shrinkage, shrinking fast, etc. 4,Can have the effect of anti-counterfeiting and beautify the packing materials, and the items were capsuled can have insulation, moistureproof, anticorrosive, the effect of dustproof, etc. 5,This PVC heat shrink tube is a great items for protecting and repairing the skin cover of 18650 and 18500 battery Description: and Shrinking temperature: 80 Deg.C Shrinkage ratio: 48 percent Flat diameter: 29.5MM (before shrinkage) Round diameter: approx. 30MM Wall thickness: 0.1MM (before shrinkage) Length: 5M Color: Transparent Package Contents: 1  x PVC Heat Shrink Tubing for 18650 18500 Battery Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.