Abstract: Disclosed is a golf club and a self-contained balancing mechanism for existing golf club. The golf club includes a shaft having a proximal end portion and a distal end portion opposite to the proximal end portion; a grip attached to the proximal end portion of the shaft; a golf club head attached to the distal end portion of the shaft, the golf club head having a cavity formed therein; and a balancing mechanism adapted to be received within the cavity of the golf club head. The self-contained balancing mechanism comprises, a housing member, an elongated threaded member rotatably associated with the housing member, and a weighted member threadably engaged with the elongated threaded member. The rotation of the elongated threaded member moves the weighted member along the elongated threaded member to change a center of gravity of the golf club head.