This item sold on August 20, 2013.
Each standard sized knob is made from a 1 7/8" (just under 2") square frosted glass tile and a small accent glass center piece. Each tile is permanently affixed to cabinet hardware. The hardware piece has a nickel finish, and includes a standard 8-32 threaded 1" screw. The back of the tile has a roughened white surface that is generally not visible when the knob is installed.
Many colors and combinations are available for custom order, so please convo if you don't see what you're looking for. Check out http://bit.ly/SeaGlassColors to view various possible color combinations with color names. You can indicate color choice during checkout in "Note to Seller"; if no color is indicated Island Blue with Lime Soda accent will be shipped.
Price is per piece. Please convo for a different quantity purchase.
To see more Practical Art for Beach and Cabin, please see my shop at http://www.etsy.com/shop/beachyrustica