Diadem Nova 100 FS The Diadem Nova 100 FS tennis racquet is designed for players looking to add explosive power to their game. This sleek, performance-focused frame lets you hit massive shots from anywhere on the court. Its spin-friendly 16×19 string pattern provide easy access to spin and power on groundstrokes. Impact shield technology in the FS system adds comfort to a powerful frame. If you're looking to elevate your game, take a swing with the Diadem Nova 100 FS! Racquet Technology Impact shield uses a proprietary foam injection inside the frame to reduce vibration at ball contact. HMT Carbon Mapping aligns the fibers in a way that enhances strength and power of the frame. Works with the proprietary resin to produce a more stable uniform flex in the racket frame. Flex Stabilization uses a patent-pending rib structure in the interior of the racquet frame for power and stability. This combines with high density foam and HMT carbon to provide a superior feel.