Yonex tennis racquets are currently used on the professional tours by a number of established players that include Grand Slam champions and former world number ones. Yonex is a world manufacturer of badminton, tennis, and golf equipment. Founded in 1946, Yonex is constantly engineering new technologies to improve the quality of their products. Players currently playing with Yonex racquets include Lleyton Hewitt, David Nalbandian, Nicole Vaidisova, Ana Ivanovic, and Elena Dementieva. Yonex tennis racquets appeal to all types of players, with choices for players of all levels. The Yonex RDS series features Yonex's control racquets, the Yonex RQiS series features Yonex's tweener racquets, and the Yonex RQ series features Yonex's more powerful racquets. Yonex tennis racquets are often identifiable by their trademark square head shape, which Yonex calls Isometric technology. To learn more about Yonex tennis racquets and all of their technologies, visit our Yonex tennis racquet technology page in our Tennis Express Buyer's Guide!