Designed for roger federers fans the wilson roger federer 21 tennis racket is a top pick for juniors who are new to the game and features a 90in2 581cm2 head and a head light balance for good playability and easy handling this lightweight racket 195g provides increased control and comes strung with a durable wilson nylon string in a 16x16 string pattern for an optimal feel there is wilson perforated grip with moisture wicking properties and a full cover guarantees protection between use