A brush includes a handle, a base plate, a bristle holder, and a plurality of springs. The handle and the base plate are integrally formed. The base plate has a recessed portion defined therein, a locating channel defined around a peripheral wall of the recessed portion, and a plurality of holes defined in the recessed portion. The bristle holder carries a plurality of bristles and has a locating rim defined in a peripheral bottom thereof for engagement with the locating channel. The plurality of springs are respectively received within the plurality of holes and are compressed between an under surface of the bristle holder and peripheries defining corresponding holes to permit a reciprocating movement of the bristle holder against the springs.