For Roger Federer's last year on tour, he needed a tennis racket that would help him compete with the new generation of heavy baseliners while maintaining his all-court style. The Wilson RF 01 Future is inspired by that racquet. It is the lightest RF racquet of the collection with a slightly higher balance, making it highly maneuverable with additional power for next-generation players. The SABR Frame Design gives it versatility, allowing for the pace, spin and direction changes signature to Roger's game. You'll notice a fast head speed thanks to Glide Guard B&G and a great ball-pocketing feel from Braid 45 Technology. Wilson RF 01 Future Tennis Racquet Specs: Head Size: 98 sq. in. / 632 sq. cm. Length: 27 in. Strung Weight: 10.4 oz. / 295 g. Unstrung Weight: 9.9 oz. / 280 g. Strung Balance: 6 Pts. Head Light Swingweight: 303 Flex: 61 Beam Width: 23.2 mm / 24 mm / 22 mm Composition: Braided Graphite String Pattern: 16 Mains x 19 Crosses Recommended String Tension: 50 - 60 lbs. Grip: Wilson Pro Premium (Brown) Product Code: WR166811