The Black Ace XF by ProKennex, which stand for extra face, is the longest, most powerful paddle in the Black Ace family of paddles. The elongated paddle face not only adds more reach for the player, but raises the sweet spot slightly further north, giving those that wield it more leverage at contact, meaning more power and more spin. This paddle is the first ever thin core, aerodynamic, kinetic, elongated, single piece paddle ever made available to the public. Paddle Weight: Average: 7.9 oz Range 7.7 -8.1 oz Paddle Size: Length: 16.4" Width 7.5" Handle Dimensions (may vary up to 1/8"): Circumference: 4" Length: 5" Paddle Materials: Core: Polypropylene honeycomb Surface: Torey Carbon Fiber Paddle Frame: Kinetic System Technology with with Shock and Vibration absorbing System Edge Guard: Edgeless USAPA Listed and Approved Utilizing a highly sensitive timing system with internal tungsten-filled chambers that reduce vibration and focus energy more efficiently, the ProKennex Kinetic Energy technology protects players from harmful impact forces and creates the most efficient energy transfer from paddle to ball. The micro-tungsten beads are embedded in the paddle?s perimeter, absorbing impact vibration before it has a chance to travel from the paddle up your arm and into the soft tissues in your joints. Due to the extreme power and pop of the Black Ace, we felt it obligatory to add an additional kinetic system in the handle of the paddle, enhancing the paddle with one extra layer of filtration of shock, torque and vibration. The tungsten beads within the kinetic system are now viewable through the end cap of the paddle. An independent study by MIT Labs found that the ProKennex?s Kinetic system reduced vi bration by 43% causing significantly less damage to the arm. Disclaimer: Due to high-performance aerodynamic edgeless-construction, chipping and scratches occur during normal wear and tear. The Air-o-guard will slow down the wear and tear of the edge. But the surface close to the edge is not fully protected and wear will show on the faces after prolonged use. This is not considered a defect under the manufacturer warranty. Listing and template services provided by inkFrog