Medium-sized steamer with a transparent glass lid and a perforated steaming plate. - Type: Steamer - Material: Ceramic/Glass - Size: Medium - Features: Transparent glass lid - Internal structure: With perforated steaming plate Thank you for viewing. It was gathering dust in the warehouse. It's a rather old steamer/pot combination. I don't know the detailed information. There was cushioning material between the pot and the lid, so the inside is dust-free. This item has been stored at home. Thank you for your understanding.