Wilson US Open 21 Junior Tennis Racquet: Wilson US Open 21 is basic tennis racquet designed for entry level junior tennis players. Racquet is made of aluminium material which is a lightweight material with durable in performance. Wilson US Open 21 Tennis Racquet is constructed with C-Beam Technology which gives uniform load distribution across the racquet frame for better feel and performance. With US Open 21, players can start the Tennis game and acquire the basic knowledge of tennis. Head size of US Open 21 is 95 Sq Inch while racquet length is 21 Inch. With these specifications, Wilson US Open 21 is referred as basic but effective tennis racquet for junior players. With advance technology, racquet weight is kept minimum .i.e. 173 gms only. US Open 21 is pre strung tennis racquet and 16X19 String Pattern.