Quadrios Heat Shrink Heatshrink set 616186 - Quadrios 22CA142, The Quadrios 22CA142 Heatshrink set includes a selection of black, red, yellow, blue, and green heatshrink tubes. This set features a 2:1 shrink ratio, ideal for securing and insulating electrical connections. It is typically used in electronics, automotive wiring, and various DIY projects. Quadrios 22CA142 Heatshrink Set 5 Colours Shrinkage 2:1 Industrial Use