Features: Ratio: 3:1 heat shrink tube it will shrink up to 33% of original rapid contraction to raise efficiency and can be used for the contraction protection on of irregular shape objects and at the same time solve the problem that the 2 :1 Ratio heat shrink tube is not tight enough after shrinking. Adhesive Lined & Dual Wall: The heat shrink tube with hot melt adhesive on the inner wall.It can be shrunk by heating with hot air gun.It is easy to use.After shrinking, the inner lining glue will completely seal the materials at the two ends of the connection, so as to achieve better waterproof and insulating Sealing effects Feature: Sealing, waterproof, strain buffering, outer self extinguishing ,Dual wall thickness, while maintaining flexibility, improves mechanical protection strength with good viscosity .Our heat shrink tubing it very soft and elastic can effectively retardant , excellent Insulation performance. Widely Used: Heat shrink tubes are mainly used for anti rust and anti-corrosion protection of wire connection solder joints and insulation treatment of wire ends, wire harnesses and electronic devices, surface protection of fitness equipment parts and steel structures, identification of other products of wire boxes, etc Description: Color: Black Material: Polyolefin Heat shrink ratio: 3:1 Operating Temperature: -131°C to + 257℉ Shrinkage Temp: 212℉(Fahrenheit) Full Shrinkage Temp: 230℉maximum Tensile strength: 10.4Mpa Dielectric strength: 15 kV / mm Flammability: Flame Retardant Package Included: 1x Heat Shrink Tubing 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 磅Normal0 Payment & Shipping ◎ We only accept payments via PayPal. ◎ We only ship to the confirmed address provided by ebay. Before you pay, please make sure your address in ebay matches the address you would like us to ship to. ◎ Item will be shipped within 1 business days from US after we receive your full payment. ◎ We strive our best to provide you the most reliable, affordable way of shipping service. But sometimes delivery is highly depended on the courier company. If you do not receive your item on time, please contact us immediately for further assistance. Thank you for your understanding. Return & Refund ◎ We operate a 30 day money back guarantee. Please read the item description and check the pictures carefully before bidding. Return or refund is available only if item DOA or there's error in item description causing the item not fitting your need. In such cases, seller pays for all related shipping cost if any. ◎ Returns are also acceptable if buyer purchased this by mistake and item still in good condition for reselling. Buyer is responsible for all related shipping cost. Feedback ◎ We maintain high standards of excellenceandstrive for 100% customer satisfaction!Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback , so that we can satisfactorily address your concerns. Please do not leave neutral or negative feedback directly without communicating with us. ◎ If you have any questions about our items, please feel free to contact us. We are happy to do our best to provide you with some help, whether you will place an order in our store or not.