The present invention teaches a wobble-hinged metal fitting suitable for adjustable motor vehicle seats, and more particularly, for back seat gears. The fitting includes two hinged brackets connected together by an eccentric, a carrier and shaft running therethrough. Each bracket contains an internal gear and an external gear associated with the internal gear. The eccentric is positioned next to one of the gears and is turnably connected to the shaft. The eccentric includes means for compensating play in the seat which consist of an eccentric part having a receiving inlet, at least one rolling body, at least two jamming planes and at least one spring. The spring is positioned such that it pressures the rolling body to come in contact with the jamming plane on one side and the gear on the other side. The carrier is positioned such that when the rolling body is in a locked position, an initial turning movement of the shaft results in the release of the locked rolling body before the eccentric starts to move.