A bath brush includes a brush element, having an elongated arm and a brush head. The elongated arm has a longitudinal groove formed in a first side of said arm and a locking device formed on a second side opposite the first side. The brush handle provides a hollow cavity for receiving the arm therein and includes a rib configured to be received in the longitudinal groove formed on the arm. At least one recess or opening is provided on the handle for receiving the locking device therein. The arm is convertible between an extended position and a retracted position. The locking device and the recesses and/or openings formed on the brush arm and handle, respectively, g are configured to cooperatingly engage and selectively lock the brush's arm within the handle in both the retracted position and the extended position.