Genuine Mother of Pearl Shell Tile Natural Varied 5/8" x 1" Minibricks (On a 12" X 12" Mesh) for Backsplash and Bathroom Walls and Floors 12" x 12" mesh-mounted mother of pearl mosaic Polished Finish For Residential and Commercial Use Sold by the piece (1 piece=1 s.f.). Link to purchase a 4" x 4" sample: http://www.amazon.com/gp/product/B00KTGG33I Thickness: 2mm As a natural product, the hues in mother of pearl may vary