Tronic Heat Shrinkable Tubing 20mm, 100m Black

Our review

This is a 100-metre reel of black heat shrinkable tubing from Tronic, with a 20mm diameter. It is the kind of consumable that suits electricians, panel builders, auto wiring work and anyone tidying or protecting cables and components. Because it shrinks when heated, it grips the wire underneath and gives insulation, mechanical protection and a neat way to bundle or identify runs. Before buying, measure the diameter of what you are covering and remember the tubing must slide on before shrinking, so check the supplied size against your cable or connector. Compare reels by diameter, length and colour, since a smaller size may suit thin wires better, and confirm the wall thickness and shrink ratio if your supplier lists them.