Description: Suitable for electrical insulation, wire bundling, mechanical protection, wire/cable joints and daily repairs etc. Comes with 150 pcs heat shrink tube assorted in plastic box, black and red, 8 sizes, satisfy your different needs Made of PE, high quality, durable Easy to use, 100％ brand new Length: 30mm, 60m, 100mm; Internal diameter: 2.0mm, 2.5mm, 3.5mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm, 13.0mm Specification: Shrinkable Ratio: 2:1 Minimum Shrinkage Temp:+70℃ Full Shrinkage Temp:+110℃ to +125℃ Tensile Strength: 10.4Mpa Dielectric Strength: 15kv/mm Flammability: Flame Retardant Approvals: UL Approved Package Includes: 20 Pieces 2.0×30mm Black Heat Shrink Tubes 20 Pieces 2.0×30mm Red Heat Shrink Tubes 20 Pieces 2.5×60mm Black Heat Shrink Tubes 20 Pieces 2.5×60mm Red Heat Shrink Tubes 10 Pieces 3.5×60mm Black Heat Shrink Tubes 10 Pieces 3.5×60mm Red Heat Shrink Tubes 8 Pieces 5.0×60mm Black Heat Shrink Tubes 8 Pieces 5.0×60mm Red Heat Shrink Tubes 5 Pieces 6.0×60mm Black Heat Shrink Tubes 5 Pieces 6.0×60mm Red Heat Shrink Tubes 4 Pieces 8.0×100mm Black Heat Shrink Tubes 4 Pieces 8.0×100mm Red Heat Shrink Tubes 4 Pieces 10.0×100mm Black Heat Shrink Tubes 4 Pieces 10.0×100mm Red Heat Shrink Tubes 4 Pieces 13.0×100mm Black Heat Shrink Tubes 4 Pieces 13.0×100mm Red Heat Shrink Tubes