Design Series 11: Convex Designed by Chris Lehrecke for E.R. Butler & Co. Finish Satin Nickel Oxidized Bronze Size S M L Satin Nickel / S Satin Nickel / M Satin Nickel / L Oxidized Bronze / S Oxidized Bronze / M Oxidized Bronze / L Quantity 270.00 Add to Cart Available in 7⁄8, 1 1⁄8, and 1 3⁄8" Diameters for Cabinets and Fine Furniture. Solid Turned Brass Knob. Available in Oxidized Bronze or Satin Nickel. Custom Plated and Patinated Finishes Available by Special Order.