Flat Width: 29.5mm/1.16-inch ; Inner Diameter (before shrink): 18.5mm/0.73-inch ; Length: 72mm/2.83-inch Shrinking Temperature: 80°C ; Shrinking Rate: 48±5% Features - Good insulation, fast shrinkage, low shrinkage temperature For Protecting Battery - Battery wraps can be used as protective cover for various batteries,such as 18650 battery pack For DIY - PVC heat shrink tubing has the functions of beautification, insulation, anti-corrosion and dust-proof. For example, it can be used as a protective cover on the handle of various tools