This is a thin screen film that provides greater touch sensitivity for MacBook and protects the LCD screen against dust, scratches, and light reflection. Made of PET material, treated with special anti-vignetting technology to effectively reduce glare caused by light. Easy to apply and easy to remove. Instructions: Close your computer, clean the screen, and remove any dust or dirt. Peel off one side of the film marked "1" about 35 cm, align it with one side of the screen, and slowly peel the film while gently pushing a card forward to smooth application. After sticking the film, use the card to push out any small bubbles, then peel off the outer film marked "2". Item Name: Laptop Screen Protector Material: PET Compatible: Apple Compatible Models: MacBook Air 11.6"/13", MacBook Pro 13"/15" Features: Anti-Scratch, High Sensitivity, Anti-Dust, Full Cover, Anti-Vignetting Surface Hardness: 4H Size: 11.6"/13"/15" (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the pictures. Please allow slight dimensional differences due to manual measurement. Package Includes: 1 x Laptop Screen Protector (Notebook not included)