While the other paddles try to meet ITTF standards, the Diamond CQ Premium easily exceeds them. This racket is constructed with 2 ply carbon and 5 ply wood with a Fortissimo rubber which gives it a mean punch. This paddle has been used by multiple Olympians like Biba Golic and Ilija Lupulesku in matches due to how perfect it performs. This racket is precisely what will distinguish you as a player to watch.You won’t have to wait before you can take this paddle out for a spin. The paddle is constructed carefully by Killerspin in Chicago where they apply the Fortissimo rubbers in the perfect way to give you a huge sweet spot. JTTAA stands for "Japanese Table Tennis Association Approved". Paddles that are used in local and national tournaments in Japan must all be registered in the Japan Table Tennis Association. In the association they actually have crew to select blades in order to ensure the quality of the blades, both imported or locally-made, are premium. Unqualified blades are not allowed to registered. So JTTAA is indeed a sign of quality, Japanese are so conscious in their effort of quality control that the fantastic construction also makes this paddle highly durable and you will be able to reap the benefits of it for a long, long time.