A cnc machined dispenser for quick inflation cnc machined aluminium dispenser with brass internals slip on valve operation allows for quick inflation twin slip fit head presses onto presta and schrader valves two piece head allows for easy o ring replacement neoprene sleeve insulates hand from cold during discharge the lezyne twin speed drive co2 inflator is compatible with threaded co2 cartridges comes with one 16g or 25g cartridge