The Mantis Pro 310 is the heaviest racket in the Pro range & features a head size of 98in 2 (632.2cm 2). It is designed to deliver great balance of power & control & weighs 310g (10.9oz). The racket is constructed from high modulus carbon (100%) & offers an open string pattern (16x 19) for more spin & an exceptional feel. In addition, it comes strung with the Power Synthetic 1.30mm string ensuring excellent tension retention & enhanced durability. The Pro 310 is the racket of choice of Greg Rusedski.