These are silhouette cut vinyl decals, not normal stickers. Make sure you peel the clear off after applying them. They stick best to a clean car window, but you can use them on a lot of things. They will not stick to certain things like silicone or other non smooth surfaces. Some things are harder to stick to than others, like wood for example, but if you take your time you can do it!

Do not clean the surface with any chemicals first. Only use soap & water or isopropyl alcohol

Go slowly, do not rush peeling off the clear or the vinyl will not stay on the surface. If your design has a lot of pointy tips, you might have to pick them off the clear with your finger and hold them down to the surface as you peel it.