This is a ceramic brush washer. The thickness is uniform, while all of the outer corners have a uniform R (radius). Its function defines the rectangular shape created by the two wells, which hold just the right amount of water for their intended purpose. The soft shape contradicts the precision of ceramic and has a warm feel to it. If a shape that follows function is too functional, its relationship to people may turn cold. By maintaining a gentle relationship with people, there's no doubt that this receptacle has become something Super Normal.