Blue 1/2" Polyolefin Heat Shrink Tubing, 3:1 Shrink Ratio — 250 ft Spool

Blue polyolefin heat shrink tubing, 1/2" diameter with a 3:1 shrink ratio, supplied on a 250-foot spool. The 3:1 ratio means the tubing reduces to one-third of its original diameter, making it suitable for fitting over larger joints and shrinking down for a secure fit. Made from durable polyolefin, it provides reliable electrical insulation, abrasion resistance and flexible protection for wiring and cable assemblies. Ideal for splicing, strain relief, color-coding, and general-purpose insulation in electronics, automotive, marine and industrial applications. Packaged on a 250 ft spool for long runs and fewer interruptions during installation.