Flat Pebble Interlocking Tile - Yosemite 12x12" Indoor or outdoor. Disclaimer:&nbsp;Pebbles are a natural product so variations in color and texture are to be expected. All tiles should be inspected before installation, as no adjustment will be made after installation. Stone size: varying shapes from 1&quot; to 2&quot;, Thickness: 3/8&quot; (10mm), Grout Joint: up to 1/2&quot;, Finish Shown: Mixed Color two sides cutting pebble stone Interlocking Tile 12" x 12"