Upgrade your Sterling Acterra?s dash with customizable knobs that add style and functionality! Choose from chrome, wood, stainless steel, or colored accents to match your truck?s look. Why upgrade? Easily control air valves, lights, wipers & more Available in various sizes, shapes & mounting styles Fits multiple semi-truck brands like Peterbilt, Freightliner & Kenworth Whether you?re refreshing your dash or giving it a full makeover, these durable, stylish knobs let you personalize your truck?s interior your way!