Bart Door Lever SetsLooking for door hardware that has a natural aesthetic? These modern style levers consists of a contrasting combination of beautiful solid black walnut finished with satin brass accents. Coordinates with the Bart Knobs & Pulls hardware series. Mechanical components are quality crafted in solid brass to be not only beautiful but also strong and durable. Fits Door Thickness: 35 50mm. Suitable for both residential and commercial application.