Shrink tubing set McPower, 560 pieces in a sorting box, in red & black is a versatile kit suitable for various applications. These tubes shrink when heated and can be used as cable insulation in model making, computer, or hi-fi fields. They are also ideal for a quick repair kit for electrical components and wires. The kit comes in a handy storage box, making it easy to store and transport. With a shrink ratio of 2:1, this set is practical and reliable.