Position the adhesive on a plane surface without pressing them so that it let s possibility to withdraw them and reposition again if needed Clean the smooth surface before sticking it on 1PC Christmas Wall Stickers Size:About A:45*33*55cm If you have take a needle to bore them Choose a smooth clean and dry surface. Peel the stickers from the sheet one by one Material:PVC Quantity:1PC Non-toxic environmental protection waterproof Color:Multicolor If the result is satisfactory for you stick firmly to the surface pressing the outwards