MagicGuardz&reg;, Made for SHARP AQUOS Crystal 306, Premium Real Tempered Glass Screen Protector Shield, Retail Box For SHARP AQUOS Crystal 306 Protect the LCD from damage and scratches with reinforced glass that increases shock absorbency. The protector is transparent, back side covered with strong silicon adhesive for easy installation. No gaps between the LCD and the protector which means touchscreen's sensitivity is unaffected. The protector is 0.4mm thick and made with chemically treated, transparent tempered glass.