The Astrox 88S Tour badminton racket is designed for power and is suitable for doubles players who want to dominate in the front court. Technically, this model is almost comparable to the Astrox 88 S Pro. Thanks to new innovations and materials used, these rackets are even more suitable for the evolving, fast-paced doubles game.  Specifications: Flex: StiffFrame: HM Graphite, CSR, TungstenShaft: HM Graphite, 2G-Namd™ FLEX FORCEJoint: Built-in T-JointLength: 5mm longerWeight / Grip: 4U (average 83g) G5Recommended Draw Weight: 4U: 20-28 lbsColor(s): Silver / BlackProduct Code: 3AX88S-T 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 pure hitting area by 7%*. Compared to a conventional round frame, the square ISOMETRICTM racket generates 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, the weight is carefully distributed across the grip end, upper frame and joint, allowing for a smooth transition between powerful shots for fast, follow-up attacks. The innovative "2G-NANOMESH NEO" graphite used in the shaft, featuring a fast flex and snapback, maximizes the power of the shot and increases the efficiency of the rotation generator system.REXIS SHAFT - High-performance shaft, precisely designed using Yonex's original molding technique. Dominate the game with improved shot efficiency.SLIM SHAFTS - 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 configuring the weight directed at the shuttlecock with a nylon bumper with added tungsten.