The A-Series™ low-profile, retractable aluminum cover features a long list of innovative designs to provide you with a simple, stylish, and secure truck bed solution. If you've always wanted the convenience of a retractable cover but didn't want to lose bed space to a storage cannister, then the A-Series is the right cover for you. The A-Series tonneau cover has the most compact housing of any retractable cover on the market, averaging only 7 ¼" deep to preserve your truck's most valuable feature – cargo space. Unlike other bed covers that provide "out of sight, out of mind" security, Roll-N-Lock's A-Series is the real deal. Its patented hinge technology offers an extra layer of protection, delivering a nearly impenetrable seam to help protect against theft intrusion. Also, the A-Series has a patented four-point locking system to lock the cover instantly and simultaneously with the tailgate. This retractable aluminum cover permits opening or closing in literally seconds, without snaps to manipulate or heavy folding panels to lift. With the turn of the lever and key, the A-Series truck bed cover smoothly slides open with a torsion spring. The cover can be pulled back with a built-in pull strap for smooth operation. The cover also features a patented, ratchet-style latching mechanism, enabling it to lock in place at four open positions. Built to protect against harsh weather conditions, the A-Series features a powder-coated aluminum cover and a patented tailgate locking mechanism for maximum durability. Even the cover's torsion spring is protected inside a 3" aluminum casing to provide years of operation. Yes, we've thought of everything.