ULTIMATE SPIN The association of an octagonal structure and a rough texture with a high-density co-polyester adds a phenomenal rotation to the ball and brings an unprecedent level of spin. DURABILITY Co-polyester composition makes our RPM family very durable monofilaments. Ideal for hard breaker players. Embossed logo reduces even more frictions for a better durability. CONTROL Firm response of our RPM family strings provides a great control to get accuracy in all your shots and keep the ball the court.