The Seventh Generation Vcore Is A Masterpiece Of Technology And Craft. The Evolution Of This Iconic Racquet Combines Undeniably Precise Spin And Remarkable Control, Creating A True Work Of Art. New Technology And Structure Combine With Innovation To Increase String Snapback And Movement, Giving Players Access To The Most Spin In Yonex Tennis History. Yes, It Has Even More Rpms Than The Previous Model*, Producing Trajectories Your Oppponent Has Never Seen Before. *Compared To The 6th-Generation Vcore. Tested By Yonex. Specifications: - Head Size: 98 Sq.In. - Weight: 305 G / 10.8 Oz - Grip Size: 1 - 5 - Length; 27 In. - Width Range: 23 Mm - 23 Mm - 21 Mm - Balance Point: 315 Mm - Material: Hm Graphite / 2g-Namd™ Flex Force / Vdm - Stringing Pattern: 16 X 19 - Stringing Advice: 45 - 60 Lbs Technology: Isometric: - 7% Larger Sweet Spot - Developed Over 30 Years Ago, The Isometric™ Design Increases The Sweet Spot By 7%*. - Compared To A Conventional Round Frame, A Square-Shaped Isometric™ Racquet Generates A Larger Sweet Spot By Optimizing The Intersection Of The Main And Cross Strings. - Isometric™ Technology Delivers Greater Control Without Sacrificing Power. Aero Fin Technology: - Improved Maneuvering - Aerodynamic Fins That Were Featured In The Vcore Sv Have Also Been Upgraded And Positioned Towards The Bottom Of The Vcore’S Frame. The New Aero Fins Are Strategically Carved Out Sections That Allow For Improved Maneuverability. Aero Trench: - Reduced Drag - To Achieve Faster Head Speeds For Increased Spin Potential, The New Aero Trench Reduces Drag By Uniquely Hiding The Grommets Located At The Top Of The Racquet Frame. Liner Tech: - For Maximum Spin Potential - Newly Engineered Straight Hole Grommets Allow More String Movement On Off-Centered Shots. Sif: - This New Silicone Oil Infused Filament (Sif) Technology--Monofilament Infused With Silicone Oil--Allows Big Hitters To Experience Ultimate Spin From Intense Snapback Speeds. Greater Snapback Produces A Powerful Spin. Sif Technology With Unique Pentagonal Structure Allows The String To Move Faster Than Conventional Models, Increasing Spin. String Sync Grommets: - For Ball Bite And Spin: - A Thin Grommet Nozzle Is Inserted Into A Larger Frame Hole Allowing The String To Move Together With The Grommet For Faster Snapback.