I got tired of buying creepers only to have them break or fall apart. So I took the wheels and headrest from the last one and made a heavy duty creeper. The frame is made from 1 inch square tube. I'm 6'3" so I made it longer than the old one so I can fit on it. The top is part of a plastic barrel. The headrest had been stationary on the old creeper but I made this one adjustable. I fabricated a couple of tool trays from sheet metal. I also added a couple of LED lights.