Description:Pro Staff SIX.ONE 26/24 BLX Inspired by the all-time Grand Slam champ Roger Federer, the Pro Staff Six.One BLX Junior has the performance, precision and styling required to pursue their own Grand Slam dreams. Headsize 100 inē Unstrung Weight 236 g String Pattern 16 x 20 Length 26 in Cross Section 23 mm Flat Beam