Application: 2000 and newer Peterbilt, Kenworth, Freightliner, International IHC, Ford, Mack, Western Star, and Volvo Mount: requires a 1 1/2" base clearance each knob, screws on Material: wood, magnetic stainless steel Size: 1 1/2" diameter sticker, with a 2 1/4" diameter top; knob is 2 3/8" tall with a 1 3/8" diameter base and 3/4" screw insert opening Part Location: dash air valves brake parking Part Style: etched tractor/trailer Part Color: silver, brown Quantity for sale: set-2 knobs and 1 tractor 1 trailer plaque Bulk Packaging New