Specifications: High strength and resilience. Resistance to common fluids and solvents as well as high dielectric strength. Adhesive lined polyolefin heat shrink, with a 3:1 shrinkage rate this tube shrinks to 1/3 of its diameter when heated. It is suitable for a wide range of applications, including electrical insulation, strain relief, cable bonding, color-coding and identification. Type: 3:1 Heat Shrink Tubing Color: Black Shrinkage Ratio: 3:1 Tensile Strength: 14Mpa Dielectric Strength: 20kv/mm Minimum Shrinkage Temperature: +70 Degrees ℃ Features: Useful, Durable, Dual-Wall 3:1 Design Length: 1.2m/47.24" (Approx.) Diameter: 2.4mm, 3.2mm, 4.8mm, 6.4mm, 7.9mm, 9.5mm, 12.7mm (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x 3:1 Heat Shrink Tubing