1-3/8 Inch Diameter; Projection: 1-1/8 Inch; Length: 1-3/8 Inch; Width: 1-3/8 Inch The Matte Black finish coordinates with most black interior elements. The true black color is sealed with a low sheen lacquer. Matte Black is a modern update for contemporary forms satin brass, Brushed Golden Brass, and Flat Ultra Brass are modern and luxurious All essential mounting hardware included for an effortless installation.