Doorbell Mount: Compatible with Blink Video Doorbell, ideal for apartments, offices, rentals, and dormitories. Note: Blink Video Doorbell not included. All New Design: Upgraded slide mechanism for easy camera mounting. Package includes four "No Soliciting" signs to help deter unwanted visitors and reduce disturbances. Compatibility: Designed for doors that open inward. Not suitable for iron security doors, storm doors, screen doors, or glass doors. Door thickness must be between 1.4 inches and 2.3 inches. Gap between door and door frame must be more than 0.06 inches. Please measure before purchasing to ensure proper fit. No-Drill & Easy Installation: Simply place the video doorbell inside and slide it over the front door, then adjust the fixed clip according to your door thickness. Silicone pad on the back of the mounting bracket provides optimal friction for stability. Premium Material: Holder constructed from high-quality hard plastic cover, back panel, and metal components. Secure and durable design. All openings are precisely designed to avoid blocking motion sensors and two-way audio functionality. Color: As shown Material: Plastic Note: Slight color variations may occur due to lighting and display differences. This does not affect product performance. Package Contents: 1 x Doorbell Mount Only the above item is included; other products are not included. Note: Lighting and monitor settings may cause slight color differences. Measurement error allowed is +/- 1-3 cm.