Head's new Lynx string is a medium firm co-polyester offers excellent control for hard-hitters taking a full swing at the ball. It's perfect for players with long, fast, hard strokes. Lynx should offers world-class topspin for all players hitting a heavy ball. Built with tech additives that increase both the elasticity and offer a softer feel than most co-polyester strings, Lynx also performs great for slower, shorter strokes, allowing excellent touch and ffeel. This sting is a good recommendation for intermediate and advanced players of all swing styles.