Looks to be a sturdy fold down like having full wings top of tool box but this setup doesn’t allow you to use your truck bed as a carry all. I previously mentioned RollNLock because it has four locking mechanisms lock points (bed and tail gate) and can be used as heavy load carrying just by rolling back the thick aluminum panels back into the roll bin. These seem to be more of a favorite for companies carrying large bins fitted into the truck bed carrying supplies etc. RollNLock is heavy duty and sounds Industrial like a industrial garage door opening and closing and can be locked at three positions if required. IMHO, though sturdy looking and lockable, the diamondback is not a useful bedcover for a standard truck owner causing limited use of truck beds. Sent from my iPhone using Tapatalk