●[Replacement Use] - Doorbell backplate compatible with Blink video doorbell only. ●[Sturdy and Stable] - Made of high quality plastic material, sturdy and not easy to bend, long service life. ●[Easy to Install] - You can install the doorbell backplate in seconds. ●[Package Includes] - 2 x backplate, installation instructions and various installation accessories. ●[Customer Services] - If you have any questions, please feel free to contact us and we will solve it for you as soon as possible.