The drawers and/or the system are low quality. When you push them inn, they will not go smooth unless they are pushed exactly by the middle. If you happen to push them just a bit to the sides the drawer willl get stuck. On the other hand, you get charged $80 for a return on an item that cost $220 (you just lost over 30% of you money) even if you haven't opened the box (we bought 2 and only assembled one)