Doorbell Mount Truly Anti-theft: The ring anti theft door mount is made of High quality materials, which has enhanced durability. Perfect for apartments, offices, rental houses and dormitories. Ideal Surfaces: The camera doorbell mount is best on smooth surfaces like metal, marble, glass, and wood; not suitable for brick or rough concrete. Hassle-Free Setup: No drilling required for this video doorbell holder! Simply peel, stick, and wait 24 hours. For rough surfaces, use the included screws. Compatible with Video Doorbell Model: for Video Doorbell (2nd Generation-2020 Release) for Video Doorbell 3/3 Plus/4 for Battery Doorbell Plus for Battery Doorbell Pro Colour:black Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * back panel 1 * top cover 1 set * installation accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.