The Xiom Jekyll & Hyde Z52.5 is a rubber from the known hybrid J&H series customised exclusively for Korean national team members and Xiom contract players. J&H Z52.5 performs great in many categories, such as speed, catapult and grip. However, the rubber requires high sense go the ball and a lot of skills to master and will best suit the strong side of top-level amateurs and professional players. Sponge hardness: 52,5 degrees. Available only with 2.1 sponge thickness and only in black colour.