Heat shrink tube 8mm, inner diameter φ8mm, flat width 14mm Shrink ratio 2:1 (8mm → 4mm) Clean, without printing Shrink tube Insulation tube, waterproof, high flame retardant heat shrink tube 1M, Clear (Transparent) Material: Polyolefin A heat gun is recommended as it will hardly shrink with a hair dryer or hot water. I used it for electrical insulation so I could see the wiring connections. There is another 1m of the item, including the one in the image. If you need a total of 2m, please contact me via the question box. In the unlikely event that it has been used, please contact me via the question box before purchasing.