The Head Speed MP 2022 Tennis Racquet is built for players who need control for their fast game, along with more maneuverability and easier handling. Key Features: AUXETIC : Auxetic constructions show a unique deformation compared to non-Auxetic constructions. Due to their internal properties, Auxetic constructions widen when a “pull” force is applied and contract when squeezed. The bigger the applied force, the bigger the Auxetic reaction. POWER GROMMETS : The enlarged power grommets maximize string movement for increased power. SPEED PATTERN : A special speed string pattern provides with the perfect mix of power under control. GRAPHENE INSIDE : Strategically positioned in most of our racquets, Graphene strengthens the frame, provides greater stability and optimizes energy transfer from racquet to ball. When you buy your next racquet, be sure it has GRAPHENE INSIDE. DIRECTIONAL DRILLING : Directional drilling combine increased power and sweetspot, delivering a plush impact feel. SPEED BEAM : The aerodynamic cross-section of the Speed beam maximizes swingspeed and power.