Recommended: Cut Braided Sleeving with a HOT KNIFE to prevent fraying, if a Hot Knife is not available, make sure to melt the edges with another heat source (example: close to the flame from a lighter). Our cable sleeving protects and prolongs the life of wires. Economical and easy to install. Our PET expandable braided sleeving : UL | ROHS | REACH | Halogen Free. Operating temp(degree F.):-103 to 257|Melt temp: 446.Our braided cable sleeve is used in automotive Hifi audio speaker hdmi wire. Size: Diameter: 1/2"| Length: 25 Feet | Color: Blackred. Diameter expands by 50%. Our wire sleeve is made from PET.