Schwalbe Clik Valve valve set for retrofitting your wheels. You already have a Schwalbe Clik Valve pump head or a Schwalbe Clik Valve pump head adapter and want to convert more wheels to Schwalbe Clik Valve? Then the set with two Schwalbe Clik Valve valves is the right one for you.Contents:2x Schwalbe Clik Valve valves