[Specifically Design] - Anti-theft doorbell mount compatible with Blink doorbell only, our blink mount encases your video doorbell securely, It cannot be removed from the side of your door unless the door is open. Perfect for apartments, offices, rentals and dormitories. (Not include Blink Doorbell) [Applicable Doors] - It’s most important thing to check your doors before ordering. The door must be inward swinging. Doors must be between 0.6" and 2.3" thickness. Door slit size needs to be greater than 0.06" to be used. Iron security door can not use. [High Quality Material] - Blink doorbell holder is made of high quality plastic housing and metal. Anti slip design,it is tight and secure so your blink doorbell won't fall down the door. [No drill to installation] - Attaches securely in seconds and easily installs and uninstalls. Simply place the Blink video doorbell inside and slide it over your front door, then adjust the fixed clip according to your door thickness. [What is included and support] - 1 x Blink video doorbell mount, installation instructions and various installation accessories. If you have any questions , Please feel free to contact us.