Features: This shrink tube is well made of high quality material, thick and durable. Cover the area with them and shrinking them with a heat , then the wire shrink wraps will wrap the wire tight and evenly within 10 seconds. Contain any size you may need for anything from professional repair to DIY work at home, so the shrink tube is very convenient when working with different size wires. This heat shrink tubing kit affords wide variety of sizes and colors, especially the smaller size which hardest to find. You can just shink the shrink tube with a lighter or hair dryer when you don'for t have a heat on hand. Of course, if you'd like to use the heat shrink tubing kit more professional, standard heat will be much better lol. The heat shrink tubing comes in a nice compact for case and the semi-modular container keeps each size separately. You can throw the heat shrink tubing kit in your toolbox and not have to worry about sizes getting mixed together. There is a color, size and position reference map inside the lid, which better to recognize which size it is. It is easy to know the remaining quantity of the wire shrink wraps through the transparent box and store the large quantity shrink tubes. Specifications: Material: EVA Temperature resistance: 125℃ Withstand voltage: 600V Color: color Quantity: 164 Shrinkage rate: 2:1 Package Includes: 164pcs/set protector tube note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!