1、INCLUDED PARTS: Air cooling gun kit, including vortexing tube, double head flexible tube and connector, with simple structure, easy to install and use. 2、GOOD PERFORMANCE: No moving parts, no need for electricity or any chemical substances, no electric sparks, ensuring safe and reliable operation. 3、SAFE OPERATION: Supports instantaneous cooling, the temperature can be quickly adjusted through the valve, allowing continuous and stable operation. 4、STAINLESS STEEL: Made of excellent stainless steel, corrosion resistant, oxidation resistant, high temperature resistant, lightweight and durable. 5、MULTIPLE USAGES: This cold air cooling kit can be used for plastic, metal, and wood processing, for welding, bonding, heat sealing and modeling projects.