Abstract: An arrangement for detachably holding seats (2) to the bowls of water-flushed toilets and comprising a number of arms (10) which can be adjustably attached to the underside of the seat (2). The free outer ends of the arms (10) are provided with pins (11) which can be locked in positions against the outside of the bowl rim of the toilet when the seat (2) is placed in position on the bowl. The arms (10) are pivotally mounted and can be locked in selected positions. The pins (11) are provided with a sleeve (12) of rubber or plastic material which generates a frictional force in contact with the toilet bowl. The arms (10) pivot around a screw (19) which is screwed into the underside of the toilet seat (2) and which in one position enables the arm (10) to be adjusted positionally and in another position locks the arm.