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: Shower floor, bathroom floor, general flooring, backsplashes, swimming pools, patios, fireplaces and more. Interior & exterior. Commercial & residential. Details: Sheet Backing: Mesh Sheet Dimensions: 4" x 12" Pebble size: Approx 3/4" to 2 1/2" Thickness: Approx 1/2" Finish: Natural Charcoal Black