Features: Durable CO2 dispenser constructed from CNC-machined aluminum Control valve allows for a more controlled inflation Twin Slip Chuck head presses onto both Presta and Schrader valves Neoprene sleeve insulates your hands from the cold during use Functions with a 16g cartridge, a 25g cartridge, or as the inflator head Includes 25g CO2 cartridge Weight (Without Cartridge): 24g