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 is inspired by that racquet and is lighter than the RF 01 Pro, making it a more maneuverable version. It features the same SABR Frame Design that 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 Tennis Racquet Specs: Head Size: 98 sq. in. / 632 sq. cm. Length: 27 in. Strung Weight: 11.1 oz. / 315 g. Unstrung Weight: 10.6 oz. / 300 g. Strung Balance: 6 Pts. Head Light Swingweight: 317 Flex: 63 Beam Width: 23.2 mm / 23 mm / 22 mm Composition: Carbon / Carbon Braid String Pattern: 16 Mains x 19 Crosses Recommended String Tension: 50 - 60 lbs. Grip: Wilson Pro Performance (Brown) Product Code: WR151411