Each order comes with 12 flowers and ranging in size from 21″- 3″. The decal material is a textured fabric with an adhesive that allows for the decals to be Re-movable, Re-usable and Re-positional. The high-quality adhesive will allow for your decals to stick to your walls for years to come. The decals stick to virtually any painted surface. Always allow 30 days on a freshly painted wall before installing to allow paint to cure and ensure proper adhesion. The decals are recommended for non-textured or lightly textured surfaces. Highly textured surfaces create less points for adhesion to the wall.