Cat Chalkboard Wall Decal Peel and Stick Message Board Measures a very large 27 by 19 inches. Perfect for use as a message board in kitchen, play room or any room where leaving messages is helpful. Quick and easy to apply to windows, mirrors, tiles, walls, furniture surfaces or any smooth, clean and dry surface. You can write using any chalk and erase easily with wet sponge. Durable and waterproof, very safe and non-toxic.