Size: 22.5 x 18.5 x 1.5 cm. No markers or writing found. As this item has been stored at home, please refrain from purchasing if you are concerned about minor scratches. Also, while I make every effort to inspect the item carefully, please be aware that there may be some overlooked minor scratches. Those who are overly concerned or sensitive to such details should also refrain from purchasing. Cancellations, returns, and exchanges are not accepted, so please avoid purchasing if you are particularly sensitive to these terms. Thank you for your understanding.