Tupperware FridgeSmart These are vegetable storage containers. I bought these a long time ago because I wanted to keep vegetables fresh, and I tried using them. However, I found it tedious to wash and wipe the wavy parts on the bottom, and they ended up being stored in the cupboard. The medium size has some discoloration. All three containers have no major damage, but there is some aging, so please check the photos and I would like to sell them to someone who understands this. If you are considering purchasing, please read my profile as well. Thank you for looking.