"The description is misleading, the bottom is completely flat, so you can not stack two or more on top of each other.
It even has the food safe symbol on the bottom and also a sticker says dishwasher safe...
But of course you can use it for storage as well, but the only way to stack these is to put them next to each other and then put a big storage box on top of them... I should have paid more attention to the dimensions, my fault."