wall sticker 1. material : pearl paper, PET, PVC , vinyl , etc. 2.printing : UV pringting , CMYK 3. Glue : removable 4. this can be sticked on all smooth surface .They are easy to apply and remove .They can be peeled off without any dirt on the wall and will not damage the wall . The way to use : 1.Clean and dry the surface with mild soap and water . Make sure the surface must be flat and have no any carve. 2.Peel off the image from the back paper . 3. Apply the image onto the surface in position . 4. Press firmly to squeeze out anyairbubbles.