The freedom to choose. Colonial Bronze offers more finish choices than any other hardware manufacturer. We set you free to perfectly coordinate finishes so you'll never have to settle for hardware that's close to what you wanted.Colonial Bronze has a Lifetime Warranty against Tarnishing on all of their products All Colonial Bronze Hardware is Hand Finished Proudly Made In USADiameter (inches): 1-1 2 Diameter (mm): 38.1 Finish: Polish Brass, Satin Brass, Satin Nickel, Polish Chrome, Satin Chrome, Anodized Aluminum, Antique Bronze, Antique Copper, Antique Satin-Brass, Dark Statuary-Bronze, Distressed Antique-Brass, Distressed Antique-Copper, Distressed-Black, Distressed Oil-Rubbed Bronze, Distressed-Pewter, Distressed Statuary-Bronze, French Gold, Heritage Bronze, Light Statuary-Bronze, Matte Antique-Brass, Matte Antique-Copper, Matte- Dark Statuary-Bronze, Matte-Light Statuary-Bronze, Matte-Oil-Rubbed Bronze, Matte Pewter, Matte Satin-Black, Matte Satin-Brass, Matte Satin-Bronze, Matte Satin-Chrome, Matte Satin-Copper, Matte Satin-Nickel, Nickel Stainless, Oil-Rubbed Bronze, Pewter, Polish Brass Unlacquered, Polish Bronze, Polish Copper, Polish Nickel, Satin-Black, Satin-Bronze, Satin-Copper, Tumbled Aluminum, Unlacquered Oil-Rubbed Bronze Finish Shown: (M15) Satin Nickel Hole Spacing: Single hole Material: Solid brass Projection: 1-3 8 Style: Traditional Type: Knob