This was defective and should never have been shipped. The holes in the lid on one side had been drilled in the wrong place, twice, and were filled in with epoxy that spilled into the third holes, and staples were embedded in the epoxy. It should have taken 5 minutes to screw the bolts into the lid, but it took ONE HOUR to clean out the holes to make the threads accessible. It should have been scrapped after the holes were drilled in the wrong place.