Solinco Tour Bite 16 is a versatile co-poly option in the Solinco family of strings and is designed and shaped to generate extreme power, maximum bite and intense spin potential. Innovative co-poly monofilament shaped to amplify spin and ball bite. Our testers noticed immediately how well the square profile gripped the ball. This is not only a perfect string for players seeking more control and spin, but it also packs a punch for those who favor a heavy ball.