That looks like a Skygarden Suspension by Flos:
http://www.lumens.com/Skygarden-Suspension-by-Flos/uu143388/product
-Nissa

It is the Skygarden Suspension by Flos. Its a beautiful piece for tall ceilings.

The Flos Skygarden Suspension Lamp by Marcel Wanders is an instant classic! Designed by the wonderful Marcel Wanders, Skygarden is just an absolutely stunning show stopper. Light bulbs are often hard to find for these lamps so purchase from Stardust.com since we include complimentary light bulbs for every lamp we sell! http://www.stardust.com/SKYGARDEN.html

I love this light!! I have a high ceiling and though it would look nice. Does it light up the room well? How often do you change the bulb?

Good morning; the Skygarden provides plenty of light! It uses 1 x 150W BT15 halogen which should last a couple of years with average use. Changing the light bulb is fairly easy as well. We currently have a white one on sale: http://www.stardust.com/flos-skygarden.html

You can see more images of this lamp in action on our blog: http://www.stardustmoderndesign.com/2013/02/flos-skygarden-skygarden-lamp-by-marcel.html

what size is the one on sale? There are two sizes, yes?

Yes, there are two sizes. The one listed above is an open-box item, so is likely only the one size. You can check out the details on both sizes and all 4 colors here as well: http://www.lumens.com/Skygarden-Suspension-by-Flos/uu143388/product

Let us know if we can help!

Where are the chairs sold?

Where are the chairs from?