A brush includes: a brushing unit including a bristle-retaining member that has a first side and a second side opposite to the first side, a plurality of bristles retained on the bristle-retaining member and disposed on the first side, and a pivot connector provided on the second side of the bristle-retaining member; a handgrip having a pivoted portion that is pivotally connected to the pivot connector, a grip portion that is opposite to the pivoted portion, and a positioning portion that is disposed between the pivoted portion and the grip portion; and a resilient component disposed between the brushing unit and the handgrip, and providing a biasing force for urging the positioning portion of the handgrip to abut against the bristle-retaining member.