The Mantis 25 Junior tennis racket is designed for 9-12 years old children. The durable aluminium alloy frame has a bumper guard for added protection. The racket has a head size of 95in 2 (613cm 2) & is 25 long; the string pattern is 16x 17. It is strung with Mantis Synthetic white string & supplied with a 12; length cover.