Please keep the surface FLAT, DRY and CLEAN before sticking. Dimensions: 19.7"x27.6"/50x70cm; Package includes: 1 x Sheet; Rolled Wall Sticker - Not Folded. Suggested Space Fit: Boys Room, Study Room,Office, Dining Room, Bathroom, Bedroom, Living Room, Shops, Kitchen. Materials: Self-adhesive PVC; Feature: Removable, Washable; Hot new large break through the wall with different designs. Recommend putting it on a ceiling for the Best Visual Effects, since there is a narrow white "edge" surrounding the entire image.