If your metal table legs are wobbling, there are a few things you can do to fix the problem. First, check to see if the legs are level. If they are not, you can try adjusting them so they are. If that doesn't work, or if the legs are already level, you can try adding felt pads to the bottom of the legs. This will help to stabilize the legs and keep them from wobbling. You can also try tightening the screws that hold the legs in place. If none of these solutions work, you may need to replace the legs.