YONEX Astrox Nextage SPECS Flex Medium Balance Head Heavy Frame HM Graphite / VDM / Tungsten Shaft Graphite / NANOMESH NEO Joint Built-in T-Joint Length 10 mm longer Weight / Grip 4U(Avg:83g)5 Stringing Advice 4U: 20 - 28 lbs Recommended String Control Players: BG66 ULTIMAX Hard Hitters: BG80 Color(s) Black / Green , Light Gray Item Code AXNT NANOMESH NEO Ensures a stronger more flexible frame, while increased shaft flex creates maximum power. AERO+BOX Frame A combination of faster swing speeds and a solid feel. 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 Designed to slice through the air, generating speedy power. Energy Boost CAP PLUS Uniquely shaped cap which maximizes shaft performance. The front allows the shaft to flex, while the sides archshaped curve stabilizes the racquet face by preventing the shaft from twisting. VDM Vibration Dampening Mesh Vibration dampening material is a stretchy mesh rolled with the graphite to greatly reduce unwanted vibrations. Built-in T-Joint Increases strength between the frame and shaft eliminating head twist for more control.