The body and handle are made of plastic. The stainless steel adapter is compatible with standard threaded foam inserts. The needle is made of stainless steel, with a ball valve nozzle and nickel-plated lance. It features a spring trigger and a flat adjustment switch for precise flow control. Designed for filling joints and gaps with mounting foam, as well as for bonding and sealing. It is suitable for insulation, renovation, and construction work. The set includes 2 flexible extensions and 2 tips to help access foam into gaps.