Rol Dri Tennis Scorekeeper Shows each player's name, the current score and the number of sets won Games can be scored up to nine points and the number of sets can be tracked up to five using the flip-over cards Customizable name plates and pen make it easy to identify the score for each player Chrome steel design with a swiveling base allows the scorekeeper to rotate the unit for easy viewing from all angles Includes a hose clamp for simple attachment to most tennis posts, two sets of 7 in. x 4 in. plastic game numbers, two sets of sets won numbers, a name plate and a pen