Yonex Muscle Power 2 Junior Strung Badminton which has been crafted specifically for juniors. The Muscle power series rackets have a unique frame construction with the strings on the rounded archway which eliminate the stress load and fatigue through contact friction. The isometric square head and the Muscle Power Frame provides high repulsion power and sharp shot with a greater sweet spot. The series is designed for players who go after fast movement and effortless power. The Muscle Power series, with its unique frame construction, integrates the frame and the string like no other.