This 2:1 conductive heat shrink wire connectors are made from MIL Standard R-46846 polyolefin and features a very conductive inner thick film of Polymer. Designed to resist EMI, RFI, and ESD interference, this heat shrink can be used with or without solder and acts as wire connectors due to its inner coating, ensuring consistent electrical continuity. With this heat shrink, it's easy to connect and protect coaxial and electrical cables with just a heat gun. This special heat shrink meets NASA Sp-R-002A and ESA PSS-01-702 standards and may have up to a 6 week lead time if out of stock, with pricing subject to change for TOS items.