How to use: Step 1: Please choose a smooth, clean and dry surface. Because our sticker is made of vinyl material,friedly to your wall. Step 2: Peel and stick the sticker one by one. > Suggestion: Use your hand to smooth out any air bubbles by pressing from the middle and slowly moving outward. If they aren't sticking firmly, use credit card or similar item to smooth out the surface of the decal. Important: Don't stick on walls that have peeling paint, holes, or uneven surfaces.