[Unique Design] Designed specifically for Blink video doorbell (Blink doorbell not included), prevent your doorbell from being stolen, perfect for rental houses, apartments, offices, rooms, dormitories, homes. [Anti-theft Design] We designed this anti-theft doorbell door bracket for Blink video doorbell. The door bracket provides an environment. The anti-theft doorbell door bracket can protect your family's video doorbell while preventing the doorbell camera from being stolen. Note: Not suitable for Blink second-generation doorbell. [Compatible Doors] Suitable for most types of anti-theft doors, inner-opening doors, left-opening doors or right-opening doors (outer-opening doors are not applicable), and the thickness of the door must be between 1.33 inches and 2.4 inches. If the thickness of the door is less than 1.33 inches, you need to find another gasket to install it by yourself. [No Drilling and Installation Required] Put the video doorbell into the housing, adjust the fixing clip according to the thickness of the door, put the bracket on the door side, and then fix it by two screws. No need to drill holes in the door or wall. Very simple. The product comes with detailed installation instructions and other necessary accessories. [Package Included]: 1x video doorbell bracket, installation instructions and various installation accessories.