Features: 1. HIGH-QUALITY MATERIALS: Made of high-quality materials, durable, sturdy and reliable, strong bearing capacity, not easy to damage and deform. 2. MULTIFUNCTION: Bearings with special structures have multiple functions such as rotation, transmission and fixation. Excellent performance, can be used for a long time. 3. EASY TO USE: The base of this free-rotating office chair is easy to use and install. Suitable for furniture chairs, bar chairs, office chairs, car chairs, display stands, etc. 4. SUPER BEARING CAPACITY: Thicker cold-rolled steel, super load-bearing capacity, full ball bearings, better weight distribution and longer, more stable operating rotation. 5. PRODUCT SIZE: The rotating base of this bar chair is made of A3 steel sheet, and the size is about 156x156x20mm/6.1x6.1x0.8in. Specifications: Item Type: Platinum Base Material: A3 Steel Plate Product Size: Approx. 156x156x20mm/6.1x6.1x0.8in Uses: suitable for furniture chairs, bar chairs, office chairs, car chairs, display stands, etc. Gross weight: approx. 579g / 20.4oz Package List: 1 x Turntable Base Note: Please allow 0-1mm / 0-0.04in error due to manual measurement. Thank you for understanding.