Duofire (White,17.778.7inch) Peel and Stick Whiteboard Sticker Memo Removable Vinyl Chalkboard Wall Sticker 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 markers to write and damp cloth to Clean Pack of 1 roll, each roll is 17.7in. x 78.7in. Free gifts: colorfull liquid chalk pen x 2