The first question is that this is unassembled. There are 32 nuts and bolts in total, but half of those are in the leg posts and difficult to access. The real reason I am returning mine is the length of the screw. Install them nut down and the rollers cannot rotate. Mount them nuts up and you have 8 quarter inch high points that dig into your stem and not the flat part of the frame that holds it. It's just a pretty crappy product.
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