The Yonex Astrox 88 is a racquet for players seeking strength and power while maintaining excellent control. Astrox redefines the doubles game with the introduction of the Astrox 88 D and Astrox 88 S. A racquet with these specifications allows for complete domination on the court The S version is designed especially for defensive players who focus on receiving and calming down the game, while the D version is a racket for players who like to attack and hit powerful shots. Specifications: Flex: StiffFrame: HM Graphite, CFR, TungstenShaft: HM Graphite, 2G-Namd™ FLEX FORCE, Ultra PE FiberJoint: NEW Built-in T-JointLength: 5 mm longerWeight / Handle: 4U (average 83 g) G5.6; 3U (Average 88g) G4,5,6Recommended Draw Weight: 4U: 20-28 lbs; 3U: 21-29 lbsColor(s): Silver / BlackManufactured in JapanProduct Code: 3AX88S-P Technologies: AERO + BOX Frame - Combines a solid feel and a fast swing.ISOMETRIC - ISOMETRICTM technology continues to help the world's best players achieve global success. Developed over 30 years ago, the ISOMETRICTM design increases the hitting area by 7%*. Compared to a conventional round frame, the square ISOMETRICTM racket creates a larger sweet spot by optimizing the intersection of the main and cross strings. ISOMETRICTM provides greater control without sacrificing power. ISOMETRICTM is a trademark of Yonex CO., LTD. *Tested by Yonex.ROTATIONAL GENERATOR SYSTEM + 2G-NANOMESH NEO - Using counterbalance theory, weight is carefully distributed across the grip end, upper frame, and pivot, enabling a smooth transition between powerful shots for fast, follow-up attacks. The innovative "2G-NANOMESH NEO" graphite used in the shaft, characterized by a fast flex and snapback, maximizes shot power and increases the efficiency of the spin generator system.EXPANDED SWEET SPOT FOR CONTROL - A 5mm longer length allows for quick maneuverability, while the enlarged Sweet Spot area, thanks to an optimized frame design, increases precision. It supports fast rallies and secures points from front attacks.ULTRA PE FIBER - The shaft is constructed of "Ultra PEF" – an ultra-polyethylene fiber – which is light enough to float while still being able to withstand enormous forces. These features allow for maximum shock absorption.ULTRA SLIM SHAFT - The thinnest ever for more power. Designed to cut through the air and generate quick power.Energy Boost CAP PLUS - A uniquely shaped cap that maximizes shaft efficiency. The front allows the shaft to flex, while the arched sides stabilize the racket surface, preventing shaft twist.Power Assist Bumper - Included to force more, increased power by adjusting the weight directed at the shuttlecock with a tungsten-infused nylon bumper.