The Air Booster G2 is a small, lightweight and easy to use CO2 inflator with manometer.the perpendicular head is compatible with galus and auto valves. The special design of the pump allows you to adjust the air flow when filling the tire. The pump is compatible with a standard threaded CO2 cartridge. Dual end design allows for CO2 cartridge storage. * CO2 cartridge is not included. material: engineering grade polymer Dimensions: 6.5 x 5.2 x 3.3 cm Weight: 45 g Head: Auto/Gallus Valve, integrated dust cap, push-in inflation Art.No.: TAB-G2