Dunlop force ultimate squash racket the dunlop force ultimate squash racket has been crafted in a premium graphite construction for the advanced player to give power and control aeroskin cx technology makes for a reduced drag of up to 35 whilst hyperfibre gives an increased energy return cx grommets makes for a faster head speed gldepolymer a 27 reduced string friction and a hybrid cross section makes for increased control and player power signature dunlop branding and vibrant colouring