Just understand what you are buying for the price you are paying. I had no problems with them for some cheap bar end mirrors and frame sliders for a street bike.
Bought frame sliders from them, they came with no instructions so I returned them. Return process went pretty smooth
Spent hours trying to find which bolt needed to come out, and which side was which (I think clutch side has the longer slider).Old bolt out, new bolt + slider in
Am I missing something