Door Compatibility: Not suitable for iron security door and storm door!The door must be swing inward! the door thickness must be within 0.59-2.36 inch and door gap over 0.06 inch.You can measure the thickness of your door before ordering | Applicable Doorbell Model: The size of the doorbell that can be placed inside is not more than 2.55inches Wide x 5.11inches High x 1.14inches depth.Anti-Theft Video Doorbell Mount compatible with Video Doorbell / Video Doorbell 2 / 3 / 3 Plus / 4 / Video Doorbell (2020 Release) and Battery Doorbell Plus/ Pro (2023/ 2024 Release) & Battery Doorbell (2024 Release) and Bl ink Video Doorbell 1st Gen and 2nd Gen (newest model). (Doorbell is Not Included in Package) | No-Drill & Easy Installation: You can install the doorbell bracket in seconds. Place your video doorbell in the housing and adjust the mounting clip to the thickness of your door. Simply place the video doorbell inside and secure it to your front door | Antitheft video doorbell bracket: The security screw is hidden on the back of the anti-theft case, which is a real anti-theft. It cannot be removed from the side of your door unless the door is open. The newly designed front opening does not affect the doorbell's motion detection sensor | Premium Material: Made of premium metal and hard ABS, enough durable to prevent your expensive video doorbell from stealing. Widely compatible for house, rental,apartment,dorm,offices, business building. If you have any problems, Please contact us immediately.We will offer the best service to every customer