The Lezyne Control Drive C02 inflatorr is a compact addition to your ride essentials that will help speed up the repair of dreaded punctures. The Control Valve is a neat feature that has a twist operation allowing for easy and precise inflation. The Control Valve head slips directly onto Presta and Schrader valves. It is compatible with threaded CO2 cartridges only and comes with an anti-freeze jacket to protect hands during inflation.