Manual tennis score keeper installs easily to any size post. Games can be scored up to nine points and the number of sets can be tracked up to five using the flip-over double sided 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 for easy viewing from all angles. Includes a hose clamp for simple attachment to most tennis posts, (2) sets of 4 x 7HD plastic game numbers (0 to 9), (2) sets of 2 x 4 sets won numbers (0 to 5), a name plate and a pen.