i had bought a set of these for my mom at christmas and they were so useful i bought another set for her as well as a set for my sister. i plan on giving the set to my sister with food in it as a birthday present. they stack so well, go from oven to table to fridge gracefully. being clear also takes the mystery out of the fridge which saves time and food since it is less likely to go bad if you can look at it and know what it is. i love them.