Tourna Big Hitter Black 7 17 660' Reel Tennis String Reels

Polyester. Providing control and outstanding spin potential with seven sharp edges that bite into the ball, Big Hitter Black 7 is a great choice for strong players looking for maximum spin potential with excellent control and tension maintenance. Specially blended polyester and polyether materials are able to hold tension better than standard polyester strings. This polyester is ideal for persistent string smashers who crave more control and spin potential.