Mizuno Prototype X-5 CT Badminton Racket (Unstrung) (Matte Black/Sunglow Orange/Silver)The Mizuno Prototype X 5 CT combines Max Wave Bridge and Strengthened Z Frame for stability, Aerogroove for string grip, Rapid Response System for faster smashes, and Hot Melt Tech for enhanced strength and speed. FEATURES Max Wave Bridge Strengthened Z Frame Aerogroove A unique groove design that increases the tenacity of the frame allowing the strings to sit firmly and eliminates slipping of the strings during play. Rapid Response System The Rapid