Review on Swivel Wheel Combo Caster with High-Quality Screws - Material Handling Products by Mark Gancio

I ordered blue because the picture shows that the rollers are in good contact with the ground. Unfortunately, they were rounded at the bottom, not flat (like the picture, they're red, just blue). Not a big deal, still great value for money. It feels like they have a bit of play, although the table still wobbles a bit even when not being pushed. Not the best choice for my new workbench.