Abstract: A lottery ring includes a first ring and a second ring that have a ring shape and are concentrically arranged so as to form a layer; and a constraining device that operates between a constraint state for constraining the first ring and the second ring such that the first ring and the second ring integrally rotate on the same center and a release state for releasing the constraint state such that the first ring and the second ring relatively rotate, wherein accommodating units that accommodate a physical lottery medium are provided at the first ring along a rotation direction, and information providing units that are arranged along the rotation direction so as to respectively correspond to the accommodating units through the layer, and associated respectively with predetermined information is provided at the second ring.