This TOOLCRAFT heat shrink tubing set includes a mini hot air gun with adjustable flame or flame-free heat, reaching a maximum temperature of 1300 °C. It features a built-in piezo ignition for butane gas and a gas level indicator through a viewing window. The included polyolefin heat shrink tubes (PEX) are adhesive-free and are used wherever flexible and smooth protection is required. When the tubing is heated, for example with the gas heat gun included in the set, it shrinks and holds all cables tightly together. A heat shrink tube can be used in the following situations: wire break, electrical insulation, mechanical cable protection, wire connection. Special feature: without gas bottle.