Original blue delft tile with woman and man in boat. Hole in the center to accommodate hands axe of zaandam clock. You need to transfer the dial ring with numbers from your case to the tile. (We sell dial rings as well) The tile is a standard measurement of 15 cm square ( 5 15/16″). Tile is 4 mm thick. (0.2″) Check if it will fit your clock, in general it replaces the tile on a large zaandam clock.