River Stone, 12" x 12", Slate, Decorative Natural Stone Tile, Made From Natural Indonesian River Stones, Meticulously Hand Crafted Products Are Permanently Attached To A Strong Net Backing With Eco-Friendly Adhesives To Retain Shape & Last A Long Time, Poly Foam Backing Blocks Weeds & Sheds Water, Easy To Install Onto Existing Flooring, Use In The Yard As Stepping Stone Or Garden Accent.