Features: Heat shrink tubes are Polyolefin, great at temperature resist, flexibility, insulation, fast shrink ability. 2:1 Shrank Ration, Fully shrink internal diameter :0.75mm, 1.25mm, 1.5mm, 2.5mm, 3mm, 5mm. 6 Sizes Inner diameters included: 1.5mm, 2.5mm, 3mm, 5mm, 6mm, 10mm. Simply slide heat shrink tube over your connection point and apply heat. Professional connections made in seconds. Suitable for electrical insulation, wire binding, color coding, cable joints repairs, daily checks. Specifications: Color：Clear Length: 100mm Tensile strength : 10.4 Mpa Minimum Shrinkage Temp : +70°C Full Shrinkage Temp : +110°C maximum Operating Temperature : -55°C to +125°C(-67°F to 257°F) Dielectric strength : 15 kV/mm Manufacture specification : ISO9001 Flammability : Flame Retardant Approvals : UL Approved Shrinkage Ratio : 2 : 1 (will maximum shrink to 1/2 its supplied diameter) 6 Tube Specifications: 1.5mm, 2.5mm, 3mm, 5mm, 6mm, 10mm Package Includes: 50x φ1.5mm Heat Shrink Tubing 30x φ2.5mm Heat Shrink Tubing 30x φ3.0mm Heat Shrink Tubing 20x φ5.0mm Heat Shrink Tubing 10x φ6.0mm Heat Shrink Tubing 10x φ10.0mm Heat Shrink Tubing note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.