bySchulz 4-n-1 Valve Tool Often it's the little things that make the big difference. For example, when it comes to inflating the tire on the road. You don't take a large pump with you and it's tedious with a small one. With our practical valve adapters, which you carry on the key ring, the bike is quickly "inflated" at the gas station. · Valve adapter SV + DV to AV in high-quality design· Additional function: valve wrench/valve extractor for looseningand tightening valve inserts AV and SV· with O-ring as loss protection and sealing ring· practical key ring· Adapter from German valve (DV) to car valve (AV)· Adapter from French valve (SV) to car valve (AV)· Mini-Tool Screw-in and Out for French Valve (SV)· Mini-Tool Screw-in and Screw-Out for Car Valve (AV)· with O-ring as loss protection and sealing ring