RS PRO Heat Shrink Tubing, Black 12mm Sleeve Dia. x 5m Length 3:1 Ratio

Introducing from the trusted brand RS PRO a unique heat-shrink tubing in a dispenser box. This handy package stores a high shrink ratio 3:1, military-grade polyolefin heat-shrink tubing. During application this box makes life easier for the user by eliminating the unravelling of heat shrink tubes, engineers can dispense the required tube amount needed for the application and then safely store it away with complete protection by the durable box.

Heat shrink tubing is a type of extruded plastic tubing that can be cut to size and fitted over a wire or cable joint to protect and insulate the connection. When heated is applied the tubing shrinks permanently providing a protective seal. The amount it shrinks depends on its shrink ratio. When you buy the tubing, it is in its expanded state, this expanded tubing has a memory so when it is heated it returns to its original state. Larger shrink ratios are required to cover materials with a greater size variation.