Abstract: Tethered ball device for attachment to a baseball glove including a ball, a reticulated tether, a tether to glove attachment, one end of the tether penetrating the ball and including a restraint to prevent the ball from becoming detached during the operation of throwing the ball, the opposite end of the tether slidably and frictionally attached to the glove attachment device. The attachment consisting of a strip of flexible material, one end of which terminates in a buckle, the opposite end terminating on one side in a hook type fastener and on the opposite side in a loop type fastener, and the attachment strip also including first and second tether restraining eyelets that allow the tether to be slid and frictionally retained thereby adjusting the overall length of the tether. A preferred embodiment includes the attachment can be easily affixed to most conventional baseball gloves.