These decals can be used on metal, paint, plastic, glass and almost any other smooth surface.  They are safe for screens, Laptops, Computers, Cars,  the back of a phone. They can be easily be fully removed if necessary.  

This decal has NO BACKGROUND - When applied you will just see the letters and graphic(s). 
What you apply it to will be the background. 

Licensed from Google, Inc. under the Creative Commons 3.0 Attribution License.