The Yonex Astrox E13 badminton racket is ideal for beginners who want power and speed to gain more confidence and develop their game. Powerful shot-making is provided by a head heavy balance, and a 3U (88g) frame weight, whilst sharp manoeuvrability and easy gripping come from Control Support Cap technology. With a flexible shaft, the E13 helps novice players develop speed in their strokes, whereas a synthetic string guarantees optimal durability and playability. The use of slim shaft makes the Astrox E13 fast through the air and reduces air resistance. The transition to the next shot can be performed smoothly, and with rapid succession thanks to Rotational Generator System technology. Badminton Rackets.