Made with an army of ultra flexible filaments, Rexis 130 delivers impressive playability to comfort and power seekers. This string's low stiffness will give you less shock on off-center contact than a typical solid core or synthetic gut strings. Yonex builds extra comfort into this string using a highly elastic FORTIMO polyurethane. In addition to being the perfect string for those who want to reduce the shock of a stiff racquet, Rexis is ideal for any player who wants to add a little more power and comfort to their game.