Graphic Spaces’ wall stickers are actually a very thin, removable, matte vinyl. This decal material is manufactured by Oracal. We use the Exhibition Calendared 631 which is used in museums and other non-permanent applications. The vinyl is backed with a low-tack adhesive which allows for easy residue-free removal without any damage to the surface. These decals are removable, but not repositional, so please plan accordingly. They will last for many years if taken care of and kept out of extreme heat and direct sunlight. In addition to excellent indoor durability, the product has a minimum 3-year outdoor durability guarantee as well. A variety of colors are available and look expertly hand-painted on any wall or smooth surface.