We call this our U.S. model of the chess tube because the board is larger than the standard board in Canada and the set comes with 2 Queens on each side. So with this chess tube set, you get a vinyl board with 2.25" squares (M-40) https://strategygames.ca/store/en/search-SKU?combine=M-40

and the standard chess pieces (Our Item #M-156): https://strategygames.ca/store/en/materials/standard-plastic-chess-piece...

and we add an extra Queen for each player.