The Ashaway UltraKill 18 racketball string set has a diameter of 18 (1.15mm) and features a high tenacity monofilament nylon wear surface and the Zyex Core. The string delivers explosive power and resilience together with a soft feel and is suitable for top amateur and professional players. It is supplied as a 12m (40ft) set.
Best Price: £13.99 from Sweatband