Product Description For experienced and advanced players looking for a flexible racquet with precision and feel. Additional Details and Features ISOMETRIC(TM) : Developed over 30 years ago, the ISOMETRIC(TM) design increases the sweet spot by 7%*.Compared to a conventional round frame, a square-shaped ISOMETRIC(TM) racquet generates a larger sweet spot by optimizing the intersection of the main and cross strings. ISOMETRIC(TM) technology delivers greater control without sacrificing power. Servo Filter : A transparent film placed between graphite enhances flexibility when pressure is applied and filters out unnecessary vibration. FLEXCON System : A tapered and elongated box frame shaft is composed with 2G-Namd(TM) Flex Force and SERVO FILTER. This system helps the racquet to flex and extend the ball pocketing duration at the impact. 2G-NAMD(TM) Flex Force : Flex Force graphite allows the racquet to quickly flex and snap back for greater spin and faster ball acceleration off the string bed. Stiff Racquet Face Design : Increase the graphite content of the racquet face. This improves ball control by stabilizing the racquet face at impact. Lock Booster : An improved grommet design that promotes string contact for efficient energy transfer and ball crushing power