BUILT FOR HARD HITTING-DEEP COURT-ATTACKING DOUBLES One of the finest hard-hitting rackets on the market the 77 Pro really does deliver power to drive the shuttle through your opponents. Using the same formula from the very successful Astrox Pro range the 77 combines a super slim shaft with a head-weighted frame to give the ultimate combination of shuttle control and deep court power. Packed full of design high technology and leading-edge materials the 77Pro is set to become a future classic. Flex Medium Frame HM Graphite Shaft HM Graphite / Namd Joint NEW Built-in T-Joint Length 10 mm longer Weight / Grip 4U (Avg. 83g) G5,6 3U (Avg. 88g) G4,5,6 Namd Revolutionary Graphite A world-first, new dimension graphite material, Namd, greatly improves the adhesion of the graphite fibers and resin by attaching nanomaterial directly to the graphite fiber.In high performance racquets, it is common to combine nanomaterials with resin that connects graphite fibers, but in Namd, nanomaterials are directly adhered to the graphite fibers and resin is greatly increased. This major improvement produces a shaft that flexes and stores energy, delivering explosive force on impact with the shuttle. AERO+BOX Frame Combines solid hitting feel and quick swing. ISOMETRIC Enlarged Sweet Spot ISOMETRICTM technology continues to help the world’s greatest players achieve global success. Developed over 30 years ago, the ISOMETRICTM design increases the sweet spot by 7%*. Compared to a conventional round frame, a square-shaped ISOMETRICTM racquet generates a larger sweet spot by optimizing the intersection of the main and cross strings. ISOMETRICTM delivers greater control without sacrificing power. ISOMETRICTM is a Trademark of Yonex CO., LTD.*Tested by Yonex Rotational Generator System Counterbalanced Weight Distribution By applying the counterbalance theory, weight is distributed throughout the grip end, frame top and the joint for maximum control. The transition to the next shot can be performed smoothly, with rapid succession. Super Slim Shaft Reduced Air Resistance The slimmest racquet ever produced by YONEX vastly reduces air resistance whilst providing maximum feel. Energy Boost CAP PLUS Uniquely shaped cap which maximizes shaft performance.The front allows the shaft to flex, while the sides arch-shaped curve stabilizes the racquet face by preventing the shaft from twisting.