Prince is a New Jersey, USA based company that manufactures tennis equipments like racquets, strings, bags, shoes, apparel and accessories. The company was founded in 1970 by Robert H. McClure of Princeton, New Jersey (hence the name Prince) as a manufacturer of tennis ball machines, and went on to manufacture racquets. Prince has been the front runner of innovation. The first oversized racquet was developed by the company in addition to the first long body racquet. The O3 and EXO3 racquets are the company's newest lines with something for all types of players including power, tweener, and control-focused racquets. The O3 line features Sweet Zone Engineering to maximize the sweet spot on your racquet and a design that allows for a faster swing speed. Players swinging with these sticks include David Ferrer, John Isner, the Bryan Brothers, and Marion Bartoli.