Learn more SIZES 6530 cubic.cm INCLUDES ITEM NO. AC-PU301 HARD FACTS/ 3-mode inflation Air Max + Double Action Mode: 6530 cm3 Air Max + Single Action Mode: 4280 cm3 Pressure Booster: 1700 cm3 Premium nylon shell with aluminum shaft Air hose of 1.27 meter Durable V shape foot base for easy standing Extra resistant inflation hose Built-in air pressure gauge BUILT FOR EFFORTLESS PUMPING Featuring a unique three progressive modes inflation system – single , double or pessure booster that can be easily switched by plugs, the Giant Pump aims to save your energy and make the inflation as easy as we can.