The glass is thick and heavy and is sandwiched between the top and bottom caps with three screws and thumb nuts, so it is adjustable to get it centered. The porcelain bulb socket was mounted crooked so the special bulb (didn't come with - not a cheap price) mounts in the fixture off center and shows. Use the short neck style bulb as the bulbs also come long neck.

I love my new light fixture. It was super easy to install and looks great!

I bought one 14 inch and two 22 inch pendants for a major remodel.
When we mounted the 14 inch light the bulb, a 50w PAR 30 halogen provided by LU, was grossly off center. No other bulbs were found with a shorter neck to hide the bulb which fits exactly even with the bottom of the light.
The second light shipped direct from Kichler to me.
I screwed a bulb into the socket and got exactly the same gross fit....way off center and tilted 30 degrees.
The review in 2007 said the bulb was off center. Today in 2010 its still off center.
Stay away from this fixture if it matters to you that the bulb fits in the middle of the fixture.
The 22 inch fixture has the bulbs deeply recessed behind the ring and glass, so an off center bulb is not visible.

These lights look great! The sockets needed to be straightened out. Once that was done - wow!