BAK D-Shaped Replacement Bumpers for Tonneau Cover Assembly. Used to properly protect the truck glass or forward panel in the flipped up position. Includes: D-Shaped Bumpers and Adhesive. Works with BAKFlip F1, BAKFlip G2, BAKFlip HD, BAKFlip FiberMax, BAKFlip VP, BAKFlip CS, BAKFlip CS-F1. | BAKFlip Replacement Cab Bumper Kit - 19-23 Chevrolet/GMC (New Body Style) PARTS-321S0001