Created for the aggressive next generation player and recommended by Alexander Zverev, the GRAVITY PRO features the Graphene 360+ technology, a massive sweetspot and a crazy flip design. With its massive sweetspot and its bold new flip design, with a yellow-green fade on one side and a blue-violet fade on the other, the GRAVITY PRO is a modern and dynamic racquet for the aggressive next generation player. The racquet's distinctive sweetspot comes from the teardrop-shaped head, while the 18/20 string pattern provides the control required by tournament players. The GRAVITY PRO features the Graphene 360+ technology, a combination of Graphene 360's energy transfer and innovative spiralfibers for enhanced flex and clean impact feel. The GRAVITY series is endorsed by Alexander Zverev and Ashleigh Barty. CPI:200 WEIGHT (UNSTRUNG):315 g / 11.1 oz STRING PATTERN:18/20 HEAD SIZE:645 cm² / 100 in² GRIP SIZE:1-5BALANCE:315 mm / 1 in HL LENGTH:685 mm / 27.0 in BEAM:20mm *All tennis racquets are shipped unstrung by the manufacturer unless string installation is specified.