Base and barrel made from CNC-machined aluminum, piston made from steel and handle made from varnished wood High-pressure nylon-reinforced braided hose, heat-treated steel shock thread chuck Oversized 2.5'' steel and very accurate digital gauge with easy-to-read LCD display Max 300 psi/20.7 bars Adjustable Valve Control (AVC): two-piece threaded chuck construction is designed to engage/disengage the shock air valve without risk of air loss upon removal Two-stage air bleed button: allows micro-tuning of air pressure 
