FIRSTINFO 2 Way Air Blow Gun w/Adjustable Air Flow, Extended Nozzle, and Shortest Nozzle 2 Way Air Blow Gun with adjustable air flow controller. Screw adjustment to control the air flow by turning the flow control knob easily. With a the extra-long nozzle (10 cm) to reach the narrow space and extra short nozzle Powerful air blow gun with 150 max. PSI -- blow away the dust, water, and all kinds of materials on machinery or engine compartments, etc.... With 2-way air inlet , one in the top and another on the bottom. Convenient to connect with hose from top or bottom. With long trigger for comfortable operating. High quality aluminum body construction for durable using.