Features: brand new and high quality Material: made of polyolefin, shrinkage ratio: 2:1 (will shrink to 1/2 of its supply diameter) Suitable for electrical insulation, wire bundling, color coding, mechanical for protection, wire/cable joints and daily maintenance, etc. Equipped with 164 heat shrinkable tubes, 5 colors (yellow, blue, black, green, red), 8 specifications, to meet your different needs. Length: 40mm/80mm, diameter: 1mm/2mm/3mm/4mm/6mm/8mm/10mm/14mm, shrink ratio: 2:1 Package contains: 1 x 164PCS (8 sizes) 2:1 heat shrinkable tube Specifications: Material: Plastic Weight: 40g Size: As picture shows Shrinkage Ratio: 2:1 Operating Temperature: -55°C to +125°C Minimum Shrinkage Temp: +70°C Full Shrinkage Temp: +110°C Maximum Tensile Strength: 10.4 Mpa Dielectric Strength:15 kV/mm Package Includes: 60Pcs 1.0x40mm/0.04x1.57inch(Yellow,Black,Red,Green) 30Pcs 2.0x40mm/0.08x1.57inch(Yellow,Black,Red,Blue) 20Pcs 3.0x40mm/0.12x1.57inch(Yellow,Black,Red,Green) 16Pcs 4.0x40mm/0.16x1.57inch(Yellow,Black,Red,Blue) 12Pcs 6.0x40mm/0.24x1.57inch(Yellow,Black,Red,Green) 10Pcs 8.0x80mm/0.31x3.15inch(Yellow,Black,Red,Blue) 8Pcs 10.0x80mm/0.39x3.15inch(Yellow,Black,Red,Green) 8Pcs 14.0x80mm/0.55x3.15inch(Yellow,Black,Red,Blue) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!