Size: Overall diameter: 19.1cm, Effective inner diameter: 17.8cm, Weight: 443g This is an unused lid, complete with the original bookmark and bag. The outer box was not included when originally purchased. Because it's made of glass, the ceiling is reflected in the photos, but it's beautifully transparent. It's a rare unused item, perhaps because production has been discontinued, or because the weak yen and rising prices have made it too expensive for Japanese people to buy. As this is a rare item, those who absolutely want the "Mauviel M'cook Glass Lid 18cm" are the only ones who should consider it. Otherwise, a cheaper glass lid from a home center might work if it fits. The last photo shows a sales photo from Amazon, and the price is surprisingly high, just for the lid. Since it's made of glass, if you accidentally break it and absolutely need the genuine product, you might have to pay this amount. Shipping will be via Takkyubin (courier service), with the seller covering the shipping costs. "Reserved" listings and price negotiations will not be offered to ensure fairness, but the price will be gradually reduced if the item doesn't sell. You can wait for the price to drop, or buy it immediately. If you win multiple items at the same time, there are reasons for discounts on shipping and handling, so please let me know in the comment section beforehand. I will create a new listing for the relevant items, such as "2 items together" or "3 items together," so please bid from there. Thank you.