Each pebble is carefully selected and hand-sorted according to color, size and shape in order to ensure the highest quality pebble tile available. The stones are attached to a sturdy mesh backing using non-toxic, environmentally safe glue. Because of the unique pattern in which our tile is created they fit together seamlessly when installed so you can't tell where one tile ends and the next begins! Usage: Suitable for interior and exterior use, walls, floors, showers, backsplashes and pools. Details: Stone size: Approx. 3/4 to 2-1/2 Thickness: Approx. 1/2 Dimensions per sheet: 4 High by 12 Wide Mounting: Mesh-backed