F22111/2 BK070 - Heat Shrink Tubing, 38.1 mm, 1.5", 2:1, Black, 6", 152.4 mm

[music] Heat-Shrink tubing is as simple as the name suggests. When heat is applied, it shrinks. Heat-shrink tubing is great for protecting cable connections, binding wires and cables together, and can be used in various different applications like automotive, audio and video, communications and the military. Unfortunately, choosing the size you need isn’t as straight forward. You need to fully understand the product and get the right measurements before you can choose the size. 2 to 1, 3 to 1, 50%, 20% shrinkage... What does that even mean? If you see a “number to number” ratio, like 2 to 1, that means that the tube will shrink half of its diameter when heated. The higher the first number, the greater the shrinkage. Although calipers are the most accurate, there are specialty devices available for measuring heat-shrink sizes or even a ruler will work just fine. Getting the right measure