Alrens(TM Fashion Black Roman Numerals and Music Notes Pattern 3D Wall Clock DIY Quiet Clock Watch Wall Stickers Living Room Children Room d&eacute;cor Self Adhesive Mural Decal Art Material: Acrylic. There is a protect film on the mirror sticker,once you finished,please tear off the protect film. DIY Size:30--40CM (pasting according to your own ideas). The wall clock is 3D effect,very fashion and modern breath. Suitable for any smooth walls of living room, kids bedroom, dining room, kitchen, office, bathroom, outdoor etc. Easy to install and remove the sticker.You could design you like. Green environmental protection,Non toxic and safety for the children.