Description: 150 Pieces assorted heat shrink tubing in 2 colors and 6 sizes satisfied for your different need. All packed in a plastic case for easy access and carry Suitable for electrical insulation, wire bundling, colour coding, mechanical protection, wire / cable joints and daily repairs etc. Internal Diameter: 1, 1.5, 2.5, 3.5, 5, 6mm Color: Black, Red Length: 34mm, 60mm, 100mm Specification: Material: Polyolefin, Heat shrink tubing Contains a shrink ratio of 2:1 Operating Temperature: -55 °C to +125 °C Minimum Shrinkage Temp: +85 °C Full Shrinkage Temp: +120 °C maximum C Package Includes: 4 Pieces 1.0 x 30mm ( black) 3 Pieces 1.0 x 30mm (red) 4 Pieces 1.5 x 60mm (black) 3 Pieces 1.5 x 60mm (red) 4 Pieces 2.5 x 60mm (black) 3 Pieces 2.5 x 60mm (red) 4 Pieces 3.5 x 60mm (black) 3 Pieces 3.5 x 60mm (red) 4 Pieces 5.0 x 60mm (black) 3 Pieces 5.0 x 60mm (red) 4 Pieces 6.0 x 100mm (black) 3 Pieces 6.0 x 100mm (red) Note: You should keep about 1 cm distance when you use the lighter to shrink the tube, because it is easy to leave a black mark