I bought three racks because I have lots of spice jars. My husband attached them to the back of two cupboard doors and it has solved two problems; it freed up space for other things (where the spices had previously been stored) and it allowed us to organize the spices alphabetically for easy access. We did have to attach the racks to hardboard because of our situation (to add more thickness because the cupboard door was too thin for the screws), but that won't be the case for everyone. I am happy with this purchase and would recommend it.