This is an octagonal plate from Furuya Seitoujo. I bought two, but I'm selling one since I haven't used it. It's never been used. It hasn't been sealed. It has a moderate depth, so it's suitable for dishes with liquid. It looks rough in the images, but it's actually smooth, and cutlery or sponges won't get caught on it. There are iron particles. This is part of the original specifications, so it's not a defective product. Please check images 2 and 3. Images 1-4 are of the actual item, and images 5-7 are from the website. I purchased it for 3,300 yen + 880 yen shipping. Width: Approximately 21.5cm Length: Approximately 15cm Height: Approximately 4cm Material: Ceramic Microwave: Yes Dishwasher: Not recommended Oven: No Material: Pottery/Ceramic Shape: Square plate Item Type: Medium plate Shigaraki ware