Hexagonal small size: approximately 20 cm vertically and horizontally. Large size: 23 cm vertically and horizontally. The large plaque has a single row of dots, which is characteristic of a single board, and there are no irregularities, so it will be fine after sealing and painting! Square large size: 14.5 cm vertically and horizontally, 2 cm thick. Small size: 10 cm vertically and horizontally, 1 cm thick. All are single boards. The back of the small size is chipped. The front is the last image, so the price will be reduced. If you purchase other tall materials, we will offer a multiple item discount, so please contact us. Please see the profile for details on shipping days and transactions!