Head radical elite tennis racket the head radical elite tennis racket utilises the latest innegra technology from head a hybrid composite construction that is extremely tough and light reducing vibration on ball impact by up to 17 for improved control and precision tennis racket head size 710cmsq 110 insq balance 345mm even weight 275g 97oz length 685mm 27in beam 23mm string pattern 1619 blackorange l4