Made for the redesigned 2019-2026 Ram 1500 with the 5'7" box (67.4"), no RamBox and the multifunction (split) tailgate, this is the Sentry CT that works with that tailgate. Hard roll-up means two things here: interlocking aluminum slats beneath patented RTxTechWeave canvas for security, and a cover that rolls up to the cab when you want the bed back. It is rated for 400 lb spread evenly across the closed cover. No drilling is needed on most trucks, because the rails clamp in place. Because of the bed design it ships without TruXedo's Quick-Release system, and a TRX's factory bed bar has to come off first. TruXedo backs it with a 5-year warranty. If your tailgate has a key lock, the cover stays locked until you unlock and open the tailgate.