Big collection of heat shrink tubing,7 Specifications. Supplied internal diameter:2.0mm,2.5mm,3.5mm,5.0 mm,7.0 mm,10.0mm,13 mm Fully shrunk internal diameter:1.0mm, 1.25mm,1.75mm, 2.5mm, 3.5mm, 5mm, 6.5mm Color:black Totel Length: 6.4M Shrinkage Ratio:2:1 ( shrink to 1/2 its supplied diameter) Material:Polyolefin Minimum Shrinkage Temp:+70Degrees Celsius Full Shrinkage Temp:+110Degrees Celsius maximum Operating Temperature:-55 to +125Degrees Celsius Tensile strength:10.4 Mpa Dielectric strength:15 kV/mm Manufacture specification:ISO9001 :Flame Retardant Supplied format (round or flat):Product is supplied flat Cutting method:Scissors or knife Package Included: (Quantity x Diameter x Length x Color) 30pcs x 2.0 x 40mm x Black 25pcs x 2.5 x 40mm x Black 20pcs x 3.5 x 40mm x Black 20pcs x 5.0 x 40mm x Black 16pcs x 7.0 x 80mm x Black 8pcs x 10.0 x 80mm x Black 8pcs x 13.0 x 85mm x Black Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.