Flame retardant, environmental protection, insulation, soft, stable performance, low temperature shrinkage, shrinks fast. Used for single 26650 Li-Ion battery covering. Material: PVC Main color: Clear Flat width: 43mm (1.7 inches) before shrinkage Round diameter: 27mm (1 inch) Thickness: 0.1mm before shrinkage Rated voltage: 300V Heating tool: hot air Shrink temperature: 80°C Shrinking rate: 48±5% (cross section) and 8% (longitudinal) Fits: 1 x 26650 battery Length per piece: 2M (6.56 ft) Temperature range: -40°C to +105°C Battery not included. Package content: 3 x PVC heat shrink tubing Only the above package content is included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is ±1–3cm.