Peterbilt 379 Chrome gearshift sleeve and collar. Covers up those hideous airlines for a crisp, clean, kept look. May be used with the factory black knob or most other after market knobs, which may be purchased separately. See the page intitled Knobs and Handles for shiftknobs. Made for 13*15*18 speed transmission or 9*10 speed transmission. Sorry, no "super" 10. Made in the USA, by SwitchCraft.