Seiji (celadon) Rust-Rimmed Cup / Jun Sumida This cup can be used not only as a teacup or sobachoko (dipping sauce cup for soba noodles), but also as a free cup for desserts, salads, and more. Material: Porcelain Size (approx.): Diameter 8cm (bottom diameter 5-5.5cm), Height 7.5cm *Due to the handmade nature of the product, there may be slight variations in color, size, and shape.