Top Knobs TK13BSN Tapered 1" Themed Knob - Brushed Satin Nickel Finish: Brushed Satin Nickel. Material: Zinc Alloy. Length: 2in.Width: 5/16in.Projection: 1 1/8in. Center-to-Center*: 1in. Base Diameter: W 2in. x L 5/16in.