Professional manufacturing with fine workmanship, relatively small swing space and long service life. Bearings with special structures have multiple functions such as rotation, transmission and fixation. Excellent performance ensure long-term use. Made of good-quality materials, durable with strong bearing capacity, not easy to damage and deform. Easy to use and install. Suitable for furniture chairs, bar chairs, office chairs, car chairs, display racks, etc. Can rotate freely in 360