At 25 inches the Dunlop Sonic Core Revelation Junior is the ideal for the hard hitting junior player. A thinner handle and lighter frame weight make it easier for younger players to use and perfect their technique. The Sonic Core with Infinergy technology enhances all round performance, with increased power and comfort from a larger sweet spot feel. Infinergy technology 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.