1、The use of high quality optical glass, internal molecules stable and orderly, and it is the standard of high quality optical products. The protective screen is made by multilayer coating process, and the product has good protective effect. 2、The main screen is processed with toughened coating, which has good impact resistance and can better protect the screen from damage. What's more, it is suitable for Nikon and apply for D850. 3、The main screen adopts multilayer protective coating process, with good waterproof, oil resistance and scratch resistance performance, which can effectively prolong the service life. 4、The main screen and the secondary screen are used to prevent flare coating to reduce reflected light and make the screen clearer by changing the route of light transmission. 5、The secondary screen is professionally developed according to the 1:1 ratio of the shoulder screen of the main machine. The PVC material is used, which has good flexibility. The edge is made of high quality pressure sensitive adhesive, which can better bond with the shoulder screen of the camera. 1 x Screen Protection Main Screen 1 x Screen Protection Shoulder Screen 1 x Screen Cleaning Wipes 1 x Manual Item Type: D850 Camera Protection ScreenWeight: Approx.46g / 1.6ozMaterial: Optical GlassMain Screen Glass Thickness: Approx. 0.3mmTouch Process: Home Screen Support Touch FunctionCoating Process: Multilayer CoatingCoating Effect: Impact Resistance, Scratch Resistance, Waterproof, Oil Pollution ResistanceApplicable Model: Suitable For Nikon And Apply For D850