Heat shrink tube kits contain 8 Specifications, 5 colors Shrinkage ratio of reflective tubes: 2: 1 (shrinks at most to half of supplied diameter) Shrink ratio 2 heat shrink tubing: 1 have the characteristics of excellent fire resistance, soft and flexible, low shrink temperature, fast shrink, acid and alkali resistance. Supplied inner diameter of heat shrinkable film: 1.0mm, 2.0mm, 3.0mm, 4.0mm, 6.0mm, 8.0mm, 10.0mm, 14.0mm Mainly used in wire connection, rust prevention, brazed joint corrosion protection, protection and treatment of wire end insulation, electrical wire repair and electronic componentsDescription:328pcs 2: 1 Assorted Shrinkable Polyolefin Heat Shrink Tubing Insulated Sleeving Wrap CableLarge collection of heat shrink tubing, 8 Specifications, 5 colors, 328pcsColor: black, red, yellow, blue, greenTemp. Minimum withdrawal: + 70 C Operating temperature: -55C to +125CTotal Shrink Temperature: + 110 C maximum Tensile strength: 10.4 MPa Dielectric strength: 15 kV/mm Flammability: Flame RetardantApprovals: UL approved Usage:1. Choose the suitable size first.2. strip and insert the wires into the heat-shrink tubing.3. Use a heat gun or a lighter to shrink the tube. Note: Keep a distance of about 1/2 inch when using the lighter to shrink the tube, otherwise it may leave a black mark on the tube. Do not touch the tube until it has completely cooledPackage Included(Quantity x Internal Diameter Provided x Single Length)120pcs x .01.0 x 40mm (Yellow, Black, Red, Green)60pcs x 2.0 x 40mm (Yellow, Black, Red, blue)32pcs x .03.0 x 40mm (yellow, black, red, green)32pcs x .04.0 x 40mm (yellow, black, red, blue)32pcs x 6.0 x 40mm (yellow, black, red, green)20pcs x 8.0 x 80mm (yellow, black, red, blue) 16pcs x .010.0 x 80mm (yellow, black, red, green) 16pcs x .014.0 x 80mm (yellow, black, red, blue) Package includes: 1x 328PCS (8 sizes) 2: 1 heat shrink tubing Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some color difference , depending on the physical object received.