Thank you for viewing! These are Akachan Honpo square food storage containers. * M size: 100ml x 12 pieces (blue lids) * L size: 150ml x 6 pieces (yellow lids) A total of 18 pieces. Used for 2-3 months. There are no noticeable scratches or stains. You can microwave them with the lids on. They are also dishwasher safe. They were convenient for storing one serving of rice and can be stacked(^^) These are used items, so please understand this before purchasing★ I will carefully pack them in bubble wrap while stacked and ship them via anonymous Mercari delivery. I can offer a small discount, so please feel free to ask(^^)