Whether dust removal: Automatic dust removal Whether there is an easy installation: Protective Glass with Install Kit Whether there is no bubble: There is no bubble magicjohn: magicjohn Brand Name: miaotiemo Screen protector helper: Auto Installation Tool (hard Cover) High-concerned chemical: None Features: Other Features: Anti-Spy Features: Anti-Scratch Features: Anti-Shatter Screen protectors material: Tempered Glass Film Origin: Mainland China Choice: yes semi_Choice: yes