Disclosed is a sink plug. The sink plug comprises an integrally formed bottom part (10) having a floor (20) and side walls (30). The sink plug further comprises a knob (40) with magnetic properties, disposed on the center of the circular floor and a cover (70) adapted to be disposed on the knob. The cover comprises a magnet (50) disposed in the center of the cover (70), wherein in an operating position, the magnet (50) magnetically engages with the knob (40).