The Head Graphene XT PWR Radical tennis racket comes with a large head size of 110in 2 (710cm 2) which boasts a generous sweet spot & great power levels. With Graphene XT technology in the frame, the weight distribution is optimised to give more power to the head, but the racket retains an even weight balance. This means it packs a solid punch, being manageable & controllable despite the high levels of potential power. The frame weighs 265g (9.4oz) & is slightly longer than standard length at 27.33'' (695mm), giving users increased reach & leverage on shots & serves. The racquet is strung with a Head Velocity MLT 16 string & the string pattern can be changed between 16x 19 & 14x 19. It is also compatible with the Sony Smart tennis sensor, so you can analyse in great detail lots of aspects of your game.