[About Bubble ] 1.Please read the instructions and vidoe before using. 2. Please clean your screen very carefully before installation with the cleaning tool on package. 3. Find a clean room without dust to install, meantime make sure you hand is clean without any dust or oil. If you feel dark with normal brightness, you can increase brightness untill you feel comfortable. Automatically repair small scratches like nail scratch, will repair after 24 hours [Anti-Peeping, protect privacy] Your screen contents not visible on the side angle, the screen is clearly visible at 90 ° on the front, and the screen is black at left and right angle if less than 45 °. Your outside screen will not be peeked. Protect your privacy on public place like bus, coffe shop, subway etc. There is no anti-peeping function on the top and bottom of the phone. Material: Soft screen protector film 2 PCS Outside Privacy Screen Protector. 2 Set cleaning tool. 1pcs scratch car Function:Anti-peep.Anti-scratch.