Original blue delft tile with floral decoration and bird. 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. 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.