I started out using this in my Real Estate office desk to keep files I was working on. It was so useful, I decided I also wanted one for my home office. Its flexible use allows you to use it as either letter size or legal size folder holder. It does not HAVE to go in a filing cabinet, it can go in really any drawer it can fit, which made the options at home much easier to decorate with. Very useful product for home, office, or both!