The Optic+ Nano-Glass screen protector provides a great level of protection using our nanometre thin hybrid film/tempered glass material, compatible with Ring Doorbell 2, 3 & 4. Your screen protector also includes an oleophobic coating, to help reduce fingerprint smears. Nano-Glass Optic+ Nano-Glass is an all-new material combining the strength and protection of traditional, thicker tempered glass screen protectors with the flexibility and thinness of film. The multi-layer material consists of a layer of tempered glass, sandwiched between two flexible film layers, this combination gives Optic+ Nano-Glass it's extreme durability and flexibility. Optic+ Nano-Glass screen protectors protect against scratches, scuffs and drops by absorbing any display impacts, protecting your devices display. Unhindered Screen Experience Precision touch sensitivity through the multi-layer glass and film composition reacts like your phone's own screen, ensuring every touch is transferred accurately for a perfect touchscreen experience. Almost invisible protection, you won't even notice it on your display with its 99.9% optical clarity. In the pack Optic+ Nano-Glass Screen Protector compatible with Ring Doorbell 2, 3 & 4 Polishing Cloth Smear-free wipes Dust Removal Stickers Easy to follow application Instructions