SEVEN SIX 76:The single-pass grommet hole construction creates less friction between strings, this effectively reduces tension loss, while extending string life. PYROFIL:PYROFIL carbon fiber and its composites are advanced high-performance materials from Japan. The characteristic of high-intensity bonds ultra-light offers racket excellent shock-absorption and enhances control. HARD-CORED TECHNOLOGY: Inspired by a military helicopter, the multi-layered structure made of carbon fiber and composites, minimize material size, and reinforce handling feel and performance at a critical standard. NANO FORTIFY TR: Introducing the TORAYCA®PREPREG material from Toray, a leading carbon fiber manufacturer from Japan, NANO FORTIFY TR not only upgrades the elasticity and impact resistance, but also enables excellent exercise performance, which further provides greater repulsion, easy-yet-smooth shot-making, and advanced racket-handling experience. DYNAMIC HEX:A breakthrough from the traditional hexagonal frame—different types of frame structures are integrated into the upper, middle, and lower parts of the frame based on the racket setting to optimize stability and swing smoothness. Hard Cored Technology is also tailor-designed to meet the needs of different frame types, enabling greater stuffiness as well as elasticity. HIGH-TOUGHNESS KINETIC FIBER: The excellent shock-absorption and malleability of the materials keep the frame both elastic and durable in the face of deformation under tension, and also disperse the stress and improve shock-absorption performance at the same time