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 choices in note to seller during checkout or via convo.
This listing is for one beach glass tile cabinet knob. Please convo for a different quantity purchase.