To obtain a brush in which fallen hair entwining with a brush pin can be removed by a simple operation by hand without using an auxiliary tool, the brush pin can be contracted housed in a brush pedestal portion, and removing fallen hair entwined with the brush pin requires a short time, and which is convenient to carry.

The brush has a casing in which many long holes are provided many brush pins each of which is passed through the long hole in a way able to go out and backward from the long hole, an operating member able to go out and backward from the casing which is passed through the other face of the casing, and an inner plate able to curve in a thickness direction of the casing connecting each of the brush pins and the operating member.