Attention! If you want an e-dartboard with tournament dimensions, you have to go for the Granboard 132. Unfortunately, the 132 is only available in white so far. 132 stands for 13.2 inches in diameter. By the way, 3S stands for 3 rows of holes from triple and double fields. The 3S does not correspond to the tournament dimensions, tournaments are only played on it in the Asian region (Japan). If you want to play an e-dartboard with tournament dimensions, you have to go for the 132. The scoring field of the 132 is also smaller than that of the 3S. It has only 2 rows of holes and double fields. The 3S BLUE has BLUE and red triples and doubles. The 3S GREEN has GREEN and red triples and doubles.