The cart is very easy to put together. The shelves come with a protective adhesive cover on them. I didn't want that blue covering to get caught in between the brackets and the legs, so peel that part back before assembling. Then when done, I peeled the covering off altogether. I love the fact that the wheels are about 3" in diameter which makes them easy to roll, and are of excellent quality. They aren't going to cause any problems. This is a quality cart.