A holding device for a shower device has a holder for the shower device that may be attached to and displaced along a hollow rod, the holder surrounding the rod in a collar-like manner. A displaceable carriage having a certain frictional effect and comprising two magnets is disposed in the rod. The holder has two magnets for attachment on the rod such that, in the holding position, the magnets of the carriage interact with the magnets of the holder under a magnetic attractive force so as to prevent the holder from sliding downward because a clamping or frictional effect results from the attractive force of the magnets.