t is rigid and made of optical glass material, which achieves more than 90% of transmittance (higher than plastic LCD screen protectors), thus making the LCD screen clear. Easy to Install: * No trimming required, fit directly on your LCD screen. * Just clean your LCD screen first, peel off the white back of the protector to stick, Done! * Easy to install and bubbles free, unlike plastic protector which always gives you bubbles between the protector and the screen. * No adhesive backing at the LCD screen, only at the border of the film for clearness. * Can be removed and reinstall, without leaving ugly residual on your LCD screen.