The wheels are functional but also add to the contemporary design. The doors lock to keep little fingers away. Best yet we show it in white but it is available in other modern colors and also in wood. Each unit looks completely different based on the finish. The extra clear glass makes the shelves sparkle – as well they are all back lit so anything you put on the shelves will literally shine. We use ours for a wonderful line of blown glass called Borowski that we are proud to sell in the store.