The pump is equipped with a special universal pump head system. Use one side to easily inflate Dunlop (DV) and Presta/Sclaverand (SV) valves. If the Schrader/auto (AV) valve is required, it can be attached within seconds. To secure the pump, simply place both feet on the ground plate. This provides the floor pump with the necessary stability required for easy and efficient inflation. For inflating balls, for example, the floor pump is equipped with a ball pin. The set furthermore includes an adapter that can be used for inflating air mattresses or other toys. Valve types compatible with pump: Dunlop (DV) Valve types compatible with pump: Presta/Sclaverand Ventil (SV) Valve types compatible with pump: auto valve (AV)