The Mantis Pro 310 II tennis racket has been designed for advanced players who play with longer strokes & like a solid blend of control & power from their racket. Power is generated by the ample 98in 2 (630cm 2) head & the frame weighs 310g (10.9oz). The racquet has a head light balance which makes it more manoeuvrable & enhances playability, & the open 16x 19 string pattern encourages spin for more effective spin play. The racket is strong & durable thanks to its carbon shaft & 100% HM carbon frame. It comes ready strung with a Mantis Tour Comfort Black 1.30mm string & a full cover is included for its protection between uses.