This heat shrink tube is made of , which can withstand use. Features the XLPE/PE material, which has high durability, not easy to deform. Fine workmanship, practicality. This heat shrink tube will make the repair and insulation easier and smoother. Features -Color:Assorted Color -Material:PE/XLPE -Size:4.50X1.00X0.10cm/1.77X0.39X0.04in - It is suitable for wire protection, data line protection, capacitor protection, insulation protection, wire marking, and etc. - Effectively prevent the data cable from breaking due to long-term use. - Insulation suitable for wire connection protection, perfect for professional maintenance and home DIY work. - You can trim each heat shrink tube to the desired length with scissors. - Outstanding workmanship, reasonable design, stable and practical, will bring you a . Package list: 20 x 13x45mm black heat sink tubes 25 x 10x45mm black heat sink tubes 25 x 7x45mm red heat sink tubes 30 x 6x45mm blue heat sink tubes 30 x 5x45mm blue heat sink tubes 4x45mm red heat sink tubes 4x45mm black heat sink tubes 3.5x45mm sink tubes 2.5x45mm blue heat sink tubes 70 x 2x45mm sink tubes 70 x 1.5x45mm red heat sink tubes 90 x 1x45mm black heat sink tubes