This rack is so handy. I'm pretty sure all the shelves are adjustable and the wheels make it fantastic for small living spaces like mine where I might want to move furniture around sometimes but they also have a "lock" function for when I want them to stay put. The construction also seems to be quality after a month and the finish is nice (i.e. not cheap-looking). It's a great little contraption if you're short on closets or just needs extra storage that also looks nice!