The HSTT100-C Thin Wall Heat Shrink Tubing shrinks around wires, connectors, joints, and terminals when heated to protect against abrasion. Applications include insulating and protecting wires/cables in indoor, dry locations. Shrink ratio: 2:1. Temperature range: -67F to 275F (-55C to 135C). Flame retardant, cross-linked polyolefin. 1.00 Diameter x 100 Long (25.4 mm x 30.5 m). Color Black. 1 roll.