The approximate sizes for this puzzle storage box is 12+3/4" OD (12 bays approximately 13/16" high ID) x 9+3/4" (9+1/2" ID) x 14+1/4" OD (12+3/4" ID). It has a removable back which allowes any of the 1/8" masonite dividers to be removed to create a larger storage area(s). The wood has been finished with a child safe coating.
