As one of the smallest CO2 inflators on the market, the Innovations Microflate Nano fits easily inside disc and aero wheels. The Microflate Nano features a handy twist-control air release and it works with Presta and Schrader valves. The Microflate Nano CO2 Inflator can only be used with threaded CO2 cartridges. Innovations includes one 20-gram cartridge.