The TonnoPro TonnoFold Tri-Folding Tonneau Cover has become the fastest growing cover in it's class! And for good reason. The hinged together sections make it easy to fold it into a more company unit. You can remove it in seconds when you have oversized cargo or simply fold it forward to lock in place for smaller loads. Our Tri-Fold tonneau cover comes completely assembled ? NO DRILLING! This makes installation of your truck topper a snap.