Review on 🔘 Enhanced Dr. Luck Polyurethane-Polypropylene Bearing with Increased Capacity by Wayne Ohlrogge

They are better than expected. Ball bearings are smoother than regular bearings, have grease fittings, and are adjustable to lock two in fixed positions so they won't spin while the other two can spin 180 feet or just have all 4 spin. They look great on my newly made steel workbench. I am very happy. Would happily buy them again if needed.