Interstate Pneumatics B100H 1/4" Adjustable Industrial Pocket Blow Gun 4.5 inch long compact easy to handle design & Durable Aluminum body construction Non-slip grip knurling on tip and Convenient pocket clip Adjustable air pressure knob Inlet Connection: 1/4 inch Industrial Plug | Maximum Operating Pressure (PSI): 175 Body Material: Anodized Aluminum | Color: Gold