MSH Modern Stainless Hardware R- Series Anodized Aluminum Doorbells by (Anodized Black.

The Doorbell button by Modern Stainless Hardware has a clean, minimalist design with a classic brushed finish. Made of solid anodized aluminum, it’s 4mm thickness makes it more substantial than similar products on the market. The hidden mounting system allows for mounting on any surface without any visible screws. Comes with a stainless steel nonlighted 12 volt wired pushbutton to connect to your existing wiring. Engineered in the USA.