MSI Glacial Black Ledger Panel Wall Tile is a Natural Stone Marble with white lightning-like streaks running across a handsome black background. The tile features random strips of stacked stone glued together for ease of installation. Each piece has an S-shaped end that helps interlock the pieces and enhance the random look. This tile can easily be laid in a pattern or single layout and is suitable for residential and commercial installations. Note: Inspect all tiles before installation. Natural stone products inherently lack uniformity and are subject to variation in color, shade, finish, etc. It is recommended to blend tiles from different boxes when installing. Natural stones may be characterized by dry seams and pit's that are often filled. The filling can work it's way out and it may be necessary to refill these voids as part of a normal maintenance procedure. All natural stone products should be sealed with a penetrating sealer.