They are perfect for keeping fridge neatly organized, I have a number of them.  They are a little on the pricey side, but they stack so nicely. I’ve never put them in the dishwasher as it says not to in tiny little print on the little sticker on the bottom. I’ve seen couple posts were people missed that on the sticker, it is not on side stickers, just posting it as reminder if you are purchasing this brand no dishwasher for them.