Integral Rail Packout Panels  Integral Rails Not Included: This is the Packout Panel kit for any Integral Rail. It comes with two packout panels and all hardware but the rail kit must be purchased separately.  Two Pack: Comes with two Packout Panels. Left and right side locks are included. Explore other accessory options such as Packout Panels and Track Nuts to add whatever you can think of.  The most efficient way to add secure, sealed storage to your truck bed. Securely hold all Packout Half Boxes. Keep those straps, tools, gear, etc. out of your cab. Secure it in the bed of the truck in seconds.  Integral's locking system prevents Packout theft. Engage the lock and the Packout can't be removed from the plate.  Features Locking system with two keys included.  Left right side locks included in the kit.  11 gauge laser cut steel. Two layers of powder coat. Rust-resistant, coated stainless hardware. Includes track nuts and all hardware to install.  Fitment Bolts directly to any Integral Rail. Bolts directly to the bedside kits for 2019+ Chevrolet Silverado & GMC Sierra 1500 and 2020+ Chevrolet Silverado & GMC Sierra HD's.  Tonneau covers do not affect most fitment applications. The panels are highly adjustable. They can change heights and position to avoid interference.  Everything needed to install is included, including instructions. Patent Pending Design and locking feature patents pending.