Lezyne Twin Speed Drive CO2 InflatorA durable CO2 dispenser built from CNC machined aluminum, the Twin Speed Drive CO2 features slip on valve operation for easy inflation A Twin slip fit head presses onto Presta or Schrader valves and a neoprene sleeve insulates your hand from the cold during discharge Twin Kit includes Twin Speed Drive, Co2 cartridges and tire levers Model Twin Speed Drive Description Inflator, Inflator Kit, Inflator Kit w Levers Head Presta Schrader CO2 Included (1)