A nice choice for players looking for a lighter weight racquet, the HEAD Graphene Touch Instinct S offers players a generous blend of comfort and power. This frame features combined benefits like comfort and power that provide impressive touch and a dampened feel. Sony Smart Tennis Sensor -compatible with the HD1 adapter ring. Ideal advanced, tournament level players and professionals. Lightweight frame with controllable power and excellent feel from Graphene Touch technology. Endorsed by pro player Tomas Berdych. Recommended string: Hawk Touch.