Various Sizes: There are 8 different sizes of high quality 1-10mm heat shrink tubing to choose from, they can be used for welded joint protection, line bundling, electrical resistance etc. High Quality Material: Made from high quality thermoplastic polyolefin. This offers excellent electrical, chemical and physical properties. This flexible and strong flame retardant tubing can be used for electrical insulation, wire bundling, very lightweight and provides wire strain relief for a variety of household, commercial, industrial and military applications. Non-toxic ECO-Responsible: Mainly used for wire connection, rust prevention and corrosion protection of solder joints, end protection and insulation treatment of wires, harnesses, cables and electronic components Custom protection: Our heat shrink tubing has the advantages of good electrical insulation, good sealing and corrosion resistance, high temperature resistance. It's a great way to finish off the ends of your braided sleeving, creating a professional, airtight finish. Easy to use: Are you not worried about your connection cable with an electric tip being unpleasant and not secure. You may decide to shrink the tubing to wrap it tightly around a joint by heating it in an oven or via a heat gun or other source of hot gas flow. Shrink wrap is best for solder joint protection, line bundling, electrical heater protection etc. and has the following features Specifications: Material: Polyolefin Diameter: 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, Flammability: flame retardant Operating temperature: -55C - +125C Minimum shrink temperature: + 70C Full shrink temperature: +110C Shrink ratio: 2:1 Tensile strength: 10.4 MPa Dielectric strength: 15 KV/mm Product parameters: 150 pcs x 1.0 x 40 mm 120 pcs x 2.0 x 40mm 100 pcs x 3.0 x 40mm 90 pcs x 4.0 x 40mm 60 pcs x 5.0 x 40mm 45 pcs x 6.0 x 40mm 30 pcs x 8.0 x 40 mm 30 pcs x 10.0 x 40 mm Package includes: 625 x Heat shrink tubing 1 x Storage box