Featuring Highly flexible micro monofilaments, the Hot Zone Power 125 delivers a Natural Gut feel, enhancing shock absorption and enhanced performance characteristics generating Power, good feel and feedback. With a limited drop off in performance the Karakal Hot Zone Power 125 squash string is for players looking for a Power generating string. Karakal Nano Technology is a revolution in String manufacturing. Adding 'nano' sized particles at a molecular level changes the cell construction and instantly improves the feel and durability of the strings.