RealTruck's BAK Revolver X4s Tonneau cover features cut-resistant aluminum slat contruction with a marine-grade vinyl overlay, as well as a heavy-duty, integrated bulkhead seal for improved weather resistance. X4s' rotational locking rails secures the cover along the entire length of the truck bed, but still offers an easy-to-use latch mechanism and keeps stake hole pockets exposed for easy use. The cover can also support up to 400 lbs. of weight when evenly distributed, the company stated, and requires no drilling for installation. Five-year warranty included.