I have a little cupboard that was so narrow it was just a waste of space. I used it to stack the dog/cat food, but it was hard to access due to the narrow width. This fit perfectly into the space and it is excellent quality. It slides easily and was easy to install. I did not attach it to the cupboard door, as it is just as easy to open the door and slide the shelves out. I love using all of the space in this cupboard and being able to access and SEE what I am looking for! Very satisfied with the item, the shipping time and the quality of the item itself.