Insultab's Vivid Vinyl HS-2000 Weather Resistant PVC, Large Diameter Heat Shrink Tubing. Heavy-duty, up to 50 mils wall thickness provides tough abrasion resistance and long-lasting durability. 2:1 shrink ratio with large diameters provides protection for large cables, complex, tapered and irregularly shaped objects, poles and posts, rollers, tools, handles and more