More informationEquipped with Birzman's patented Air-Lock valve head, designed to prevent air loss when disconnected from the valve. Pump with a large inflation capacity. Features: Head: Threaded Air-Lock. Gauge: 1" pressure gauge with pressure release button.Body: CNC machined aluminum.Capacity: 300 psi / 20.7 bar.Measurements: 24 x 2.5 x 3 cm. Weight: 84 g.