This Racquet Will Make Sure That Your First Steps On The Tennis Court Won´t Be Your Last. Pre-Strung, The Attitude Pro Model Provides Easier Handling And Maneuverability.Specifications:- Weight (Unstrung): 270 G / 9.5 Oz- String Pattern: 16/19- Head Size: 645 Cm² / 100 In²- Grip Size: 0-5- Balance: 330 Mm / 0.5 In Hl- Length: 685 Mm / 27.0 In- Beam: 22 MmTechnology:Metallix™:- Specially Formulated Crystalline Metal Alloy With A Grain Size 1000 Times Smaller Than That Of A Typical Metal Creates A Much Stronger Material. The Hall-Petch Effect States: Smaller Grains = Stronger Material. The Result Is A Lighter, Stronger And More Powerful Racquet.