Supplied internal diameter:4.0 mm minimum Fully shrunk internal diameter:2.0 mm maximum Colour:Black,Blue,Green,Grey,Red,White,Yellow Length:1M Shrinkage Ratio:2:1 (will shrink to 1/2 its supplied diameter) Material:Polyolefin Minimum Shrinkage Temp:+70°C Full Shrinkage Temp:+110°C maximum Operating Temperature:-55°C to +125°C Tensile strength:10.4 Mpa Dielectric strength:15 kV/mm Manufacture specification:ISO9001 Flammability:Flame Retardant Approvals:UL Approved Supplied format (round or flat):Product is supplied flat Cutting method:Scissors or sharp knife NOTE: Please select the color you like, then leave us a message or send an email to us your choice, otherwise we will send the color at randomly!thank u! Internal Diameter mm:4.5±0.2mm Internal Diameter Max mm:2.00mm Wall Thickness Nom mm:0.45mm Package Included:1*Heat Shrink(4.0mm 1M) YOU CAN CLIKING ON FOLLWING PICTURE TO CHOOSE PRODUCT £¨Various sizes various colors£©YOU WANT: