This heat shrink tube is made from , which can withstand lasting use. Features good workmanship, it has high durability, not easy to deform or break. This heat shrink tube will make the repair and insulation much easier and smoother, with different sizes to meet your requirement. Features -Color:Black -Material:Polyolefin -Size:4.00X0.20X0.20cm/1.57X0.08X0.08in -Size:4.00X0.25X0.25cm/1.57X0.10X0.10in -Size:4.00X0.35X0.35cm/1.57X0.14X0.14in -Size:4.00X0.50X0.50cm/1.57X0.20X0.20in -Size:8.00X0.70X0.70cm/3.14X0.28X0.28in -Size:8.00X1.00X1.00cm/3.14X0.39X0.39in -Size:8.50X1.30X1.30cm/3.34X0.51X0.51in - It is perfect 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, better prolong the lifespan. - Insulation functions, suitable for wire connection protection, good for professional maintenance and household DIY work. - You can trim each heat shrink tube to the desired length with scissors, to meet your requirement. - A variety of heat shrinkable tubes for your choice, you can apply it at home or outdoor. Package list: 120 x heat sink tubes(2x40mm) heat sink tubes(2.5x40mm) 80 x heat sink tubes(3.5x40mm) 80 x heat sink tubes(5x40mm) 64 x heat sink tubes(7x80mm) 32 x heat sink tubes(10x80mm) 32 x heat sink tubes(13x85mm)