BRUSH

The present invention relates to a brush that can remove foreign materials easily from brush bristles protruding from a body arranged on a handle and can be used easily by enabling a user to adjust the protruding length of the brush bristles according to the intended use of the user. The brush according to the present invention comprises: a body; a handle connected to one end of the body to be able to be grabbed by the hand of a user; a plurality of brush bristles protruding from one surface of the body; a moving plate having a plurality of brush bristle inserting holes for having a plurality of brush bristles inserted therein and arranged on one surface of the body to be able to slide along the brush bristles; and a lever arranged to be separated from the handle. The lever includes a handle connection bar folded toward the handle to be connected to the handle and a moving plate connection bar folded toward the body to be connected to the moving plate through a penetration hole arranged on the body. The lever pushes or pulls the moving plate to or from the free ends of the brush bristles.