a pivot head razor having a prong holder that is disposed in a razor head , is adapted to be opened and closed , and serves to receive , hold , and release a pivot head razor blade . the razor head also has a spring cam that can be pressed in and that correspondingly rests against the back side of the pivot head razor blade . in order to arrest the pivot head razor blade in the prong holder in its shaving position via positive engagement of the pivot head razor blade , the spring cam is adapted to be locked by a locking device .