The theme of “catena” is to form the surface of the wooden frame with 2 lines that can each be created by a single stroke. Some changes were made to the original design in order to coordinate the lines and create continuity. As a result, the rear legs protrude making them functional for stacking, and the side surfaces of the seat unite harmoniously. This chair blends easily into daily life, with the simple lines providing a true sense of quality craftsmanship. “catena” means, “chain”, as the linked lines form the individual characteristics of the design.