Badger Air-Brush Co Stock Number 50-0401 Fine Needle for Model 100 and 150 internal mix airbrushes. The needle runs through the length of the airbrush. When operating the airbrush, the needle retracts into the airbrush, controlling the flow of paint. The needle is made of a precision manufactured durable stainless steel, machined to a sharp tip. Avoid dropping the airbrush, as a bent tip on the needle will compromise the spray pattern. Precision manufactured utilizing Stainless steel. Badger Air-Brush parts are proudly made in America.