16 concave /convex turned & carved wood tiles, mounted on ( painted black ) 1/2” mdf. The woods are; Rose Myrtle burl (Australia), Chestnut Oak burl (NC), Claro Walnut burl (Calif.), and Buckeye burl (Calif.). Buffed acrylic lacquer finish. Dim 24”L X 24”W X 2”D