Integral Bulkhead Rail Integral Rails: This is the first step to optimizing your truck bed. Add this rail within minutes and unlock the endless accessory options that can be added to it.  Slide-N-Lock: The cleat system locks and unlocks with the twist of a handle. Unlock, slide it to your desired position, and lock it in place. You can change cleat positions within seconds. Some accessories are not Slide-N-Lock compatible and mount with track nuts.  Each rail comes with a tie-down cleat. Explore other accessory options, such as Packout Panels, Packout locks, and Track Nuts to add universal accessories.  Bolts directly to the factory, tie-down anchor points on 2017+ Ford Super Duty.  Features .2" thick extruded aluminum rail. Anodized black.  Replacement tie-down anchors included.  1 tie-down cleat included with each rail  Slide and lock system to easily change cleat positions.  Track nuts are available to mount any accessory along the rail. Rust-resistant, coated stainless hardware. Additional accessories available.  Fitment Bolts directly to the factory, bedside mount holes on 2017+ Ford F250, F350, and F450.  Not compatible with Retrax or any other retractable tonneau covers. Most tonneau covers do not affect the fitment.  Does not work with plastic bed inserts without trimming. Spray-in bed liners are okay. Everything needed to install is included, including instructions. Patent Pending Design and specific feature patents pending.