The Ion Element PSX from Black Knight is customised for a professional squash player, Daryl Selby & packed with technologies delivering a fast & powerful frame. It has a head size of 475cm 2 (73.6in 2) & features the Power Surge technology for reduced vibration, added stiffness & power, as well as the Thin-K technology that provides an aerodynamic frame. More structural strength & durability are ensured by the 16K Hyper Tensile Fibre (HTF), whereas the Nano Crystalline technology allows for fine-tuning of the weight & balance & greater control for hard hitters. in addition, the racket comes strung with the Power Nick 19 string for an extra bite on the ball & offers optimum performance thanks to the Power of 6 technology.