The Solinco Hyper G 16 Tennis String consists of co-polyester fibers that provide optimal spin generation together with dependable control and extended durability. The square design of this string provides strong ball contact which generates powerful topspin effects alongside deep shot dips. The medium-firm feel of this string lets aggressive players swing without driving the ball wide of the target. Sam Querrey and Donald Young support this 16-gauge (1.30mm) string which delivers exceptional playability combined with solid durability. A 12m pack serves up enough string for completing an entire set of job strings which attracts competitive player selection. Upgrade your game with Hyper-G String!