Abstract: A retractable bristle brush comprising a housing having a bottom side, a top side, spaced side walls and spaced end walls, a plurality of openings extending inwardly from the bottom side, a plurality of bristles aligned with said openings, means mounted for movement between retracted and extended positions of adjustment relative to the housing, the inner ends of said bristles being connected to said means for movement of said bristles through said openings to retracted position within the housing responsive to movement of said means to retracted position and for movement to extend perpendicularly outwardly from the bottom side of the housing responsive to movement of said means to extended position.