Suitable for electrical insulation, wire bundling, color coding, mechanical protection etc. Comes with 560pcs heat shrink tubes, 5 colors, 12 specifications, satisfying your different needs. It performs environment friendly, flexible retardant, quick shrink and stable characteristics. Item Name: Heat Shrink Tube Minimum Shrinkage Temp: +70 Full Shrinkage Temp: +110 Maximum Operating Temperature: -55 to + 125 Tensile Strength: 10.4Mpa Dielectric Strength: 15kV/ mm : Retardant Cutting : Scissors, Sharp Knife Features: Safety Protection, Extra Durable Use, Multiple Uses Size: 90Pcs Black: 1mm x 45mm/0.39 inch x 17.72 inch (.) 70Pcs Red: 1.5mm x 45mm/0.59 inch x 17.72 inch (.) 70Pcs Yellow: 2mm x 45mm/0.79 inch x 17.72 inch (.) 50Pcs Green: 3.5mm x 45mm/1.38 inch x 17.72 inch (.) 50Pcs Black: 4mm x 45mm/1.57 inch x 17.72 inch (.) 50Pcs Blue: 2.5mm x 45mm/0.98 inch x 17.72 inch (.) 50Pcs Red: 4mm x 45mm/1.57 inch x 17.72 inch (.) 30Pcs Blue: 5mm x 45mm/1.97 inch x 17.72 inch (.) 30Pcs Blue: 6mm x 45mm/2.36 inch x 17.72 inch (.) 25Pcs Red: 7mm x 45mm/2.76 inch x 17.72 inch (.) 25Pcs Black: 10mm x 45mm/3.94 inch x 17.72 inch (.) 20Pcs Black: 13mm x 45mm/5.12 inch x 17.72 inch (.) Material:ABS+ metal colour:Green + blue + yellow + red + black Package Contents: 1 * Heat Shrink Tubing Kit Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.