Flat Width: 210mm/8.27-inch ; Inner Diameter (before shrink): 133mm/5.24-inch ; Length: 1m/3.3ft 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, 21700, AA, AAA, 18500, 20700, 26650 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