... ,Strong loading4.360 degree smooth rotation5.Thickness 2.5mm260*260mm rolled-edge swivel plate, metal chair swivel platePower coating/galvanization Low noisy ... :360°free rotationAdvantages:Double ball bearing system, smooth and flexible. Rolled-edge design. Swinging gap is small, and it can stand strong ... loading capacity. Long-life using 260mm 10 inch rolled-edge rotation swivel plate