BAK makes this BAKFlip MX4 for one bed: the 5'1" box on the 2016-2023 Toyota Tacoma. That box runs about 60.5" along the floor. BAK calls the MX4 America's best-selling truck bed cover, and the Gen 3 version adds re-engineered locks and a longer dual-action tailgate seal. Fold it against the cab and strap it down to drive with the bed open; BAK notes the 3rd brake light stays visible in every position. Revised EPDM perimeter seals and tight-fit clamps help keep weather out, and drain tubes carry off water that reaches the rails. For the install, adaptor rails bolt to the factory utility rails with T-nuts and the cover rails clamp on top, with drain holes drilled in the wheel wells; BAK rates it at 30 minutes or less. It carries BAK's 5-year limited warranty.