Made of polyolefin with a shrinkage ratio of 2:1, these heat shrinkable tubes are designed for electrical insulation, wire bundling, color coding, mechanical protection, wire/cable joints, and general maintenance applications. The set includes 164 pieces in 5 colors (yellow, blue, black, green, red) and 8 size specifications to meet a variety of needs. Available sizes: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, and 14mm diameter, with lengths of 40mm or 80mm. Once heated, the tubes shrink to half their original diameter for a secure fit. Material: Plastic Weight: 40g Shrinkage Ratio: 2:1 Operating Temperature: -55°C to +125°C Minimum Shrinkage Temperature: +70°C Full Shrinkage Temperature: +110°C Maximum Tensile Strength: 10.4 MPa Dielectric Strength: 15 kV/mm Package contents: - 60 pcs 1.0x40mm (Yellow, Black, Red, Green) - 30 pcs 2.0x40mm (Yellow, Black, Red, Blue) - 20 pcs 3.0x40mm (Yellow, Black, Red, Green) - 16 pcs 4.0x40mm (Yellow, Black, Red, Blue) - 12 pcs 6.0x40mm (Yellow, Black, Red, Green) - 10 pcs 8.0x80mm (Yellow, Black, Red, Blue) - 8 pcs 10.0x80mm (Yellow, Black, Red, Green) - 8 pcs 14.0x80mm (Yellow, Black, Red, Blue) Note: Slight variations may occur due to manual measurement and differences in monitor displays.