All-aluminium barrel, base, handle and gauge construction is lightweight and durable;The large, stable base minimises tipping;Replaceable internals increase functional life span;The Auto-select head with alloy levers instantly fits Presta and Schrader valves;A built-in air release valve makes it easy to dial-in pressures;The extra-large, raised 2.5″ (6.5cm) gauge puts pressure info within easy view;Long 45″ (114cm) hose, max pressure 160 psi (11bar);