START SLIDESHOWSTOP SLIDESHOW Material Wood Size 11/16" I. D. x 1-7/8" x 1-7/8" high Fits Most 1990+ heavy duty trucks. Features Chrome rim & S. S. script plate on top Unit & Package Sold by each, carded for display Part No. Script 96021 Tractor 96022 Trailer Part No. & Image Selection Screw-In Air Valve Control Wood Knob with Stainless Steel Script Plate Part No.: -- Please Select -- 96021 96022 Combination of product variants is not available Related Products Heavy Duty “Z” Mounting Bracket Pin Hole Style Air Control Knobs with Crystal on Top Rear Center Light Panels with Backing Plate and Rectangular Lights Female to Female Gear Shift Adaptor Classic Reflector Chrome Steel Push-On Lug Nut Cover w/o Flange Lighted Bumper Guides 7/8″ Dia. x 49″ (L) in Rocket Style for Plastic Bumper