This set includes a steamer basket and aluminum pot made of the highest quality Japanese cypress. The aluminum round pot is a two-handled pot used in Japanese restaurants. Its spill-proof shape and excellent heat conduction make it ideal for stewing and soup cooking. It is also lightweight and easy to carry. There are two types of steamer : Japanese type and Chinese type. The Japanese type is deep and the Chinese type is shallow. Japacolle sells both types, both made in Japan. Size -15.5cm/ Steamer: D14 cm, Pot : D 15.5mm　 Capacity: 1.3L -18.5cm/ Steamer: D16×H6cm, Pot : D 18.5mm　 Capacity: 1.9L -21.5cm/ Steamer: D19cm×H7cm, Pot : D 21.5cm　 Capacity: 2.8L -15.5cm(two-tiered) Steamer: D14cm, Pot : D 15.5m　 Capacity: 1.3L -18.5cm(two-tiered) Steamer: D16cm×H6cm, Pot : D 18.5m　 Capacity: 1.9L -21.5cm(two-tiered) Steamer: D19cm×H7cm, Pot : D 21.5m　 Capacity: 2.8L Material: Steamer: Japanese cypress, Pot: Aluminum, Binding: Synthetic resin IH, microwave, and oven cannot be used.