Alrens(TM Luxury Acrylic Mirror Effect 3D Wall Clock DIY Watch Clocks Wall Stickers Living Room Children's Room Deocr adesivo de Parede Home Decoration Material: Acrylic. Not Plastic . Acrylic's cost is 3 times higher than plastic. Finished Size:40cm *60cm /15.7"*23.6"(DIY Free Size). There is a protect film on the surface. Please tear it off after pasting mirror sticker on the wall. It looks very shiny! Easy to stick.Easily removable without damaging your wall.No harm to the environment and health. Battery:AA batteries (Not included).