Duofire A4 Sized Peel and Stick Blackboard Sticker Memo Removable Vinyl Chalkboard Wall Sticker 8 Sheets with Free Gifts Self-Adhesive---Easy installation just peel and stick on the wall, remove without causing damage to the smooth surface. DON'T apply to ROUGH and UNEVEN wall surface. 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 damp cloth to Clean Pack of 8 sheets, each in 8.26-inch by 11.69-inch Free gifts: liquid chalk pen (white) x 2 ; microfiber cleaning cloth(random color) x 2;