, part number 309-40247, is a tubing made of dual wall heat shrinkable cross linked polyolefin. The inner wall shrinks up to 50% when exposed to a heat source, while the outer wall shrinks proportionally to the inner wall. The tubing is designed to protect against adverse environmental conditions and provide strain relief. Its color code of green/yellow ensures high visibility and adds to safety. It is ideal for general purpose use, especially for electrical insulation and harnessing applications. The insulation and material integrity remain secure even in harsh temperatures. The tubing provides up to 600V peak and 125V continuous operation. It is available in various sizes to accommodate various areas of application. This particular part includes the tubing and the sleeves necessary to bundle it. The length of each piece of tubing depends on the application and the size and number of wires. The pieces themselves are lined with a cool shrinkable adhesive layer that activates when heated, creating a long-lasting hermetic seal that offers a degree of strain relief. Furthermore, the tubing also contains several different additives, such as fire retardant additives, that increase its durability and provide stress relief. The combination of these features offers superior protection for electrical wiring.