Specially designed and assembled for various applicationsPerfect for workshop, repair garage or inside your tool boxDouble tin ring, twice the sealing and water resistant performance provide perfect seal for all applications Four sizes, Duraflex double ring heat shrink terminal: white, red, blue, yellow Suitable for agricultural, earth moving equipment and automotive applicationsShrinkage Ratio: 2:1Operating temperature: -55°C - 125°CShrink temperature: 80°CSolder melt temperature: 138°C