【High Quality】The mouthpiece is made of high quality stainless steel, anti-corrosion, anti-rust and durable. Plastic body, comfortable to hold and will not feel cold in winter. Dust gun piston material: high quality copper, air inlet: 8 inches. European style quick connector - connects to pneumatic fittings. 【Two Lengths of Blow Gun Nozzles】The long air blow gun kit provides nozzle sizes of 125mm and 300mm. Different lengths can be suitable for different places and meet different purposes. The extra-long nozzle allows access to hard-to-reach areas such as deep holes, blind holes or narrow holes. Ports are made in the neck for more targeted ventilation. 【Super Powerful Blowing】Cone jet nozzle with fixed black plastic wind resistance to protect objects from scratches. Internal pressure structure, low consumption, strong blowing force, and energy saving. It is designed for efficient blowing and is perfect for cleaning parts and surfaces. 【Wide Application】The dust removal nozzle can