These wood domino trays are durable, smooth, solid natural wood. Each tray has three slanted slots for easy storage and visibility. These trays accommodate professional- and standard-sized dominoes and lay tiles vertically or horizontally. Each tray measures 10" x 2.4" x 2.4", making them easy to pack and play on the go. Great for a game of Mexican Train, Chickenfoot, and other domino games that require tray holders.