Bestop 42905-01 HighRock 4X4 Black Approach and Departure Roller for 1997-2018 3" diameter steel roller is 24" wide to exactly fit in Bestop bumper bosses Mounts to HighRock 4x4 Front or Rear bumpers that have integrated bumper bosses Increases ability to get over the toughest obstacles when rockcrawling All mounting hardware and instructions included Fits HighRock 4X4 P/N's:numbers 42901, 42903, 42908, 42910, 42911 and 42917