No heat source or tools required. What's needed only is human hands to finish all the installation. No minutes to take. All will be done in 5-7 seconds. If you are looking for a quick and safe solution for insualtion, tight sealing and mechanical protection, for outdoor or indoor applications, on markets of power, wireless and other industrial sectors, you can count on HarshMet's CPE series or CPS series EPDM cold shrink or silicone rubber cold shrink tubes. Both series are available in a quite wide range of sizes from 15mm to 155mm in inside diameter and 20mm to 1500mm in length. Below is a 1200 mm long cold shrink within HarshMet's range for power markets.