Gardner Bender HST-ASTB Heat-Shrink Tubing Assortment, 3/32-3/4", Black Product Description Put safety first with durable, flame-retardant tubing that is ideal for cable insulation, repair, marking or bundling. The Gardner Bender HST-ASTB Heat-Shrink Tubing Assortment includes 160 tubes in six sizes (2:1 shrink ratio), plus organizer storage case. Each thin-wall heat-shrink tubing not only provides superior mechanical, abrasion and moisture protection but also strengthens connections and provides a comfortable gripping surface. As a result, professional and DIY multi-purpose uses include repairing cords (ranging from large appliance cords to small electronic cables that show wear at pull-out); covering tool and sporting equipment handles; and sealing rope for neat, unravel resistant ends. Upon heating to 120? C (250? F) the tubing begins to shrink but will not drip, crack or flow. Plus, it is self-extinguishing within 30 seconds. Meets UL 224, 125? C: CSA C22.2 No3 198.1, 125? C; MIL-DTL-23053/5, Class 1 and 2, AMS 3636 and 3637; DEF STAN 59-79, Issue 3 Type 2a. Continuous operating temperature: -55? C (-67? F) to 135? C (275? F). Shrink temperature: 120? C (250? F) to 250? C (480? F). 600 V/Mil Dielectric strength.. From the Manufacturer Gardner Bender Heat Shrink Tubing Assorted. Resists common fluids and solvents. Superior quality at affordable price. Features Provides excellent protection from mechanical abrasion and moisture Flame-retardant polyolefin construction resists common fluids and solvents Repairs appliance, extension or small electronic cords with exposed bare wires Repairs, strengthens and protects cable insulation to ensure strong connections Also ideal for many general-purpose applications, from non-slip handles to non-fray rope ends USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.