The file cabinet appears to be well made, but it uses lightweight materials. As a result, it is not heavy enough to avoid tipping when a drawer is opened. Tipping occurs whether or not the wheels are installed. The unit may become more stable when both drawers are full of heavy papers, but at this point in my usage it is a problem.
The holes drilled in at the factory to attach the wheels were not big enough for the screws, so I couldn't make it mobile. Also the drawer pulls had nothing to attach to, since the holes for that were too small as well. . .wouldn't buy another one of these.