Description : Collection of heat shrink tubing, 12 specifications, 5 colors(Black, red, yellow, green, blue) Supplied internal diameter: 13mm, 10mm, 7mm, 6mm, 5mm, 4mm, 3.5mm, 3mm, 2.5mm, 2mm, 1.5mm, 1mm Length: 45mm each Shrinkage Ratio: 2:1 (will maximum shrink to 1/2 its supplied diameter) Material: PE/ Polyolefin Note: Please allow 1-5mm differ due to manual measurement. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Specification: Operating Temperature: -55 to +125 degrees Celsius Minimum Shrinkage Temp: +70 degrees Celsius Full Shrinkage Temp: +110 degrees Celsius Maximum Tensile Strength: 10.4 Mpa Dielectric Strength:15 kV/mm Flammability: Flame Retardant Package Included: Style 1: 560pcs 20x 13mm black 25x 10mm black 25x 7mm red 30x 6mm blue 30x 5mm blue 50x 4mm red 50x 4mm black 50x 3.5mm green 50x 2.5mm blue 70x 2mm yellow 70x 1.5mm red 90x 1mm black Style 2: 800pcs 25x 13mm black 25x 10mm black 25x 7mm red 20x 6mm blue 30x 5mm blue 40x 4mm red 40x 3.5mm blue 50x 3mm black 70x 2.5mm green 125x 2mm yellow 150x 1.5mm red 200x 1mm black includes: Choice 1: 560pcs x Heat Shrink Tubing Assortment Kit Choice 2: 800pcs x Heat Shrink Tubing Assortment Kit