Hidden River Lab Premium Wall Plate Adapter is designed to improve the fit and finish of installations for Wired Doorbell Pro (3rd Gen). This proprietary mounting plate helps cover wall marks, old holes, uneven paint lines, and other surface imperfections around the installation area for a cleaner-looking result. It also provides added space behind the mounted doorbell for wiring and wire nuts, helping create a neater finished installation. The adapter can also be used over a standard single-gang electrical box opening, making it a practical solution for retrofit and replacement work. Developed and made in the USA, this HRL accessory is manufactured from durable UV- and weather-resistant material for long-term outdoor use. Includes required hardware. Installation guidance is available by QR code on the packaging. Compatibility: Designed for Wired Doorbell Pro (3rd Gen). Check product images and fit guidance before purchase to confirm compatibility with your specific doorbell model.