What are those plastic peelable cover sheets for phones?

The clear plastic covering to protect the screen? I want to buy a sheet on eBay but don't know what to search.What are those plastic peelable cover sheets for phones?
Screen protectorsWhat are those plastic peelable cover sheets for phones?
a sort of film that covers the screen...





Search for phone screen protector
Try ';screen protectors';


Good luck!
its supposed to help the screen from being scatched but i dont believe it does

makeup school