Makes shelf unit more convenient
Your review: I bought this dolly base years ago because I had a storage rental and needed to be able to move shelves around to get access to certain parts of the storage unit. It is a very tough and high quality dolly, fits the shelf easily and even with a heavy load, it is easy to move around because of the large wheels. Even when moving stuff out of the storage unit, I stacked it heavy and used that to move boxes and stuff to and from the car. Now it is in my garage and I'm about to buy another dolly base for another shelf rack.