Easily Heatshrink Over Large Connectors & Plugs Shrinkflex 4:1 heatshrink tubing is the most versatile of the heatshrink products. The very high shrink ratio allows the material to fit over very large plugs or connectors and shrink down tightly. 4:1 Shrinkflex is ideal as a strain relief on assemblies that are subject to frequent connection cycles.

---