The Dunlop M Fil 500 105 is an excellent tweener frame and ideal for good club players seeking a fine balance of power, control, and maneuverability from a lightweight racquet. Best suited for 3.5 5.0 level players. CompositionConstruction CarbonR FibreBoron Weight Strung 285g10 oz. Headsize 105 Length 27.25 String PatternMains X Crosses 16 x 19 Recommended String Tension 53 63lbs Beam Width 24 26mm Balance Head Heavy Power Level Medium StiffnessFlex 67 Frame Technology M Fil Multi Filament is a technology that incorporates a unique patented 3D braiding process. Grip Type Hydramax Comfort Swing Weight 311 Swing Speed Moderate Fast