All round and clear view of your surroundings without opening the door. - Unique design, ultra clear view and superior finish Wide angle, best in class lens for all round visibility. The outsider cannot hide anywhere. Easy to install over a wide range of 15 mm to 37 mm door thickness .Install eye berry Door eye also for your total safety and security. Product Features: Wide angle: ultra-clear view for all round visibility Lens: eye berry use best in class Ultra Clear lens so Outsider cannot hide anywhere Design: Unique design, Superior finish comes with Antique Brass Finish Viewing angle: The Viewing angle is crystal clear and it has 180�degree wide angle� degree great visibility Installation: Easy to install over a wide range of 15 mm to 38 mm door thickness Manufacturer: All types of door viewers Like Swastic Door Viewer, Round Door Viewer, Square Door Viewer, Pyramid Door Viewers.The entire product line has been designed using high quality raw material and latest methodologies by our professionals.