3-Position Carburetor Enrichment Knob with Chrome "Pointed" Knob Fits S&S Super "E" & "G" carburetors Features: This kit utilizes a brass retaining nut with 3 steps that allows you to turn the choke/enricher "ON" using a spring and stainless steel plunger. The knob measures 1.1" wide x 1.2" tall making it easy to find and a breeze to use. This enricher ONLY works with S&S Super "E" & "G" carburetors. Dimensions: Overall Length = 3-5/16" Width = 1.1" Thread = 7/16"-20 Finish: Chrome Pointed Knob Brass Fitment: S&S Super "E" & "G" carburetors.