Morita's lightweight aluminum cookware set. - Set includes: Cookware set (3 pots) - Material: Aluminum - Morita Seisakusho Large: Inner diameter 15.8cm x height 9.8cm Medium: Inner diameter 14.2cm x height 8cm Small: Inner diameter 12.4cm x height 6.6cm 3 pots can be stacked. Only used at home to boil water as a test.