these are canned good racks that are meant to mount on the inside of a pantry door. I found them while setting up for a rummage sale at a friends house and she gave them to me when the light bulb came on for me that they could be used for stamps!!
I also attached a piece of flat iron to the bottom of the racks with zip ties to hold my stickles that have magnets on the bottom of the bottle.
12-17-09 - I found these identical racks at Lowe's the other night for about $5 each!!