Lightweight aluminum body with a nickel-plated surface. The ergonomic plastic handle ensures a firm grip. Aluminum adapter with Teflon coating compatible with standard phosphorescent threaded fittings. Stainless steel needle, brass nozzle with ball valve, and nickel-plated barrel. Pneumatic trigger with spring and adjustable plastic button for precise flow control. Designed for filling joints and gaps with insulating foam, as well as for welding and sealing. Ideal for insulation, renovation, and construction tasks. Includes two flexible extensions and one tip to facilitate foam access in gaps.