This domino tray is made from solid wood with secure, slanted slots. 5 channels per tray.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. Dominoes can be placed sideways or standing up.It's perfect for all Dominoe Games including Mexican Train.Dominoes are not included.4 trays per order. Color box package.