The Solid Fold by Extang is tough... Made of aircraft grade aluminum, alloy frame, and honeycomb core construction. Looks great with a sporty black textured poly-tex finish that is also durable and UV resistant to avoid fading. You can fold one or two panels back to access your bed or completely remove the cover in seconds if needed. And the Solid Fold keeps your cargo dry and secure. The Solid Fold can not be opened without opening the tailgate so locking the tailgate locks your whole truck bed. No drill installation. Installation available for an additional $90 charge.