The use of imported 0.5mm thin optical glass material with high transparency (over 90% light transmission rate) ensures clear imaging. A special treatment process provides the protector with a hardness level of nearly 8H. It can withstand an elastic pressure of up to 8kg/m², protecting the LCD screen from sudden impacts. High-quality imported 3M double-sided adhesive ensures strong adhesion and easy installation. Resistant to normal high and low temperatures, it will not produce bubbles or peel off under regular use. The specialized optical glass effectively resists erosion from sweat, oil, and acidic substances, helping extend the life of the LCD screen. It can be removed and reused as long as the adhesive layer remains undamaged. Specification: Size: 6.4x5cm / 2.52x1.97inch Compatibility: Suitable for Pentax K-5/K-7 Package Includes: 1 Piece Camera Optical Glass Screen Protector Note: Color may vary slightly due to different monitor color calibrations. Slight measurement deviations may occur due to manual measurement.