This is a set of high-quality mahjong tiles in an attaché case from Taiyo Unimac Co., Ltd. The tiles are oversized and easy to handle, with a substantial weight, giving them a feeling of quality. The tile dimensions are 28 x 20.5 x 16.5 mm. The backs of the tiles are yellow. There are water stains on the "Beginner's Guidebook" pamphlet, but the score sheets are unused. These large tiles are no longer sold, as they are out of production.