Package Include: Package include 328pcs heat shrink wrap tube sleeving (4Colors/8 Sizes). The heat shrink cable sleeve is very easy to use and shrink,heat shrink sleeving you just wrap your target wire and shrink it with small hot air blower, cigarette lighter,hot air gun or even. Premium Material:Our heat shrink tubing is made of high-quality thick EVA material, which can provide strong protection for your wires and cables. It is low-temperature heat-melt, high-temperature shrinkage, have nice insulation corrosion resistance, high toughness, ensure safety connection. Secure Fit: The shrink sleeves for electric cables is made of polyethylene flame retardant materials. fits tightly and securely around any shaped wire. water resistance to ensure it's safe to use. Easy to use: The heat shrinkable tubes are easy to use, just wrap your target wire and shrink it with hot air gun, small hot air blower, small flame blowtorch, even a cigarette lighter to finish. cover the wire, and heat with heat gun, soldering iron, hair dryer or even a lighter. you can use a lighter or hair dryer to shhrink the tube when you don't have a heat gun on hand. Wide Applications: This Heat Shrink Kit is very suitable for fixing the broken wires, electrical insulation, mechanical protection, wire connection, wire ends process, wire / cable junctions, DIY, daily repairs, color coding, older point protection, reinforcing earphone and mobile charging cables.