The YONEX Astrox 22 LT Badminton Racket features graphite composition and has an isometric shape. The racquet has a square-shaped Isometric frame shape designed to keep vertical strings at a similar length, as well as the horizontal strings to produce an expanded sweet spot in all directions. The badminton racquet has rotational generator system. By applying the counterbalance theory, weight is distributed throughout the grip end, frame top and the joint for maximum control. The transition to the next shot can be performed smoothly, with rapid succession. The built-in solid feel core cuts harmful miscellaneous vibration at impact. Solid feel core is carried in all racquets manufactured in Japan. The slimmest racquet ever produced by YONEX vastly reduces air resistance whilst providing maximum feel. About Li-Ning: The Li-Ning badminton racquets are made with great quality and provide the player with a powerful yet stable hit. The racquets are made of wood with a rubber grip on the handle and a steelhead. The racquets are lightweight and easy to carry, which makes them great for beginners. Is the racket unstrung? Yes, the YONEX Astrox 22 LT Strung Badminton Racket is an unstrung badminton racket.