For your wall stickers to stick properly and look great for long, you have to install them properly. Here are tips on how to properly install the units:
Ensure that the wall is properly prepared
As you might know, wall stickers don't stick well on rough and dirty surfaces. If the surface is rough, you should smoothen it by sanding or using any of your other preferred methods. You should also clean the surface in order to get rid of dirt, oil and any other substances that might be there.