I ordered the Parrot design ball with the hanging metal eye at the top. There is a large hole in the bottom, about 2 1/2" diameter, which the ad doesn't mention. When I hung it up, something didn't look right. I sat it down on a flat surface and saw that the hanging eye was off center so when hung, the design would be straight. If the eye was in the center, the design would be crooked when hung. The whole thing is just off kilter, so I returned it. In looking at photos of others with the glass extension at the bottom and no hanging eye on top, I noticed that when photographed, they looked like they were not sitting level, so as to make the design look straight. I think all of them must be defective, but that's just my opinion. It was pretty, but I would not buy another one.