Vita Craft Pressure Cooker (Item you have already purchased) In the same drawer, I found a brand new, unused rubber gasket! Outer diameter is 25cm. Since I don't have the actual item, I'm not 100% sure, but I don't have any other items with rubber gaskets. Outer diameter 25cm Please confirm before purchasing. Please check the size and shape in the photos. This is a home-stored item. It's not perfect, but I'd like to offer it at a low price. If you understand the above, - Shape: Round - Material: Plastic - Color: Gray Thank you for looking.