DUNLOP SONIC CORE REVELATION 125 Squash Racket The Infinergy technology enhances all round performance, with increased power and comfort from a larger sweetspot feel. It also helps to reduce vibrations by up to 37% compared to a standard carbon fibre Dunlop racket. Glidepolymer helps to reduce friction between the grommets and strings to allow for greater string movement. A new V-shaped cross-section increases the frame stability for greater ball feel and enhanced shot power.