The HellermannTyton 323-11400 Heat Shrinkable Tubing is a 3.5:1 medium wall tubing length of 1m with a 140/42 diameter. It is heat shrinkable to ensure a secure and uniform insulation cover with a black finish. Heat Shrinkable Tubing and Sleeves are used to secure and contain bundles of cable, electrical joints, splices, and electrical terminations. It offers a waterproof seal as well as excellent resistance to abrasion and protection from chemicals, moisture, fungi and other external elements that can damage the cables. In addition to heat shrinkable tubings, they can also be used as a covering for wire closures, splices, and terminals. The tubing is easy to install and provides excellent reliability in most industrial applications.