This domino tray is made from solid wood with secure, slanted slots. 5 channels per tray.<br> Overall size:7.87 inches(L)* 3.74 inches(W)*0.67inch(H).Channels thick/gaps wide: 3/8 inch (approx.1cm),fits most dominoes.We recommend you take a measure of your tiles thickness before ordering. <br> Dominoes can be placed sideways or standing up.<br> It's perfect for all Dominoe Games including Mexican Train.<br> Dominoes are not included.8 trays per order. <br> Plain yellow box package.