My set was missing a screw, but I just used one that fit from around the house and it works perfectly fine, albeit a bit ugly at the top due to the mismatched screw tops.

The screws often come loose, causing the headphones to wobble around and lean to one side

The screws i received with the product for assembly are garbage

After a week or so the screws get loose and need re-tightening

It's not complicated, but the screws they give you to put it together are complete garbage

This may or may not be due to my inability to completely tighten the second top screw because it stripped out on me.