Professional-grade polyolefin heat shrink tubing engineered for reliable insulation and component protection. This 3/64" diameter tubing features a 2:1 shrink ratio and opaque black finish, making it ideal for wire bundling, strain relief, and concealed connections in electronics, automotive, and industrial settings. The cross-linked polyolefin construction delivers excellent chemical and abrasion resistance while maintaining flexibility after shrinking. Flame-retardant properties meet industry safety standards for electrical applications. Operating across -55°C to +135°C with a 600V rating, this tubing handles demanding environments. The convenient 100-foot spool minimizes material waste and supports high-volume production needs. Simply heat to activate shrinking, starting at 70°C with full recovery at 110°C.