The overall design is nice and clean, the modularity is even better than I expected. This must be a secret deal! Once that was flipped, the castor bolt went into place easily. this shoes are so pretty, and light and just as in picture , but they smelled hope the smell goes away will leave to air outside my porch for a few hrs, they are good prize, well made might buy one more pair do recommend maybe they all dont smell, very comfortable. Must save up for the RGB headphone stand. My only reason for the deduction is that you can get similar items for a lesser price. I collect my son?s toys (a lot of cars) into boxes and he can put his LEGO back before bedding every day. Purchased these racks in order to hold additional wine bottles in kitchen cabinets. The pieces fit tightly together. I love the color, sound quality is clear the range is excellent.