Made out of a strong vinyl material for long lasting quality. you can cut at any size. easy installation just peel and stick on the wall, remove without causing damage to the smooth surface.use this convenient peel and stick chalkboard sticker to express your creativity with chalk. decorate interior walls or windows of nursery, home, bathroom, office, dorm, or store. use chalks or standard liquid chalk ink or mark pen to write and wet cloth to clean. to give you plenty of room for writing menus, sweet messages, to-do lists and more