Widely used:The rotating base of the pole stool covers a 360 degree valve seat rotation, with solid ball bearings and lubricants inside, ensuring smooth movement without unnecessary drift or shaking; The more ball bearings there are, the better the weight distribution. Heavy duty rotating base plate: made of high-quality cold-rolled iron with a black coating on the surface. dimensions: 6-inch bar stool rotating plate replacement part, the rotating plate is designed and made of solid ball bearings and heavy-duty cold-rolled iron structure. This product is sturdy, durable, corrosion-resistant, not easy to rust or deform, structurally stable, 360 rotatable device. Easy installation and load-bearing:Compared to the distance from the center of the bolt hole in the old rotary joint; The rotating device has slots, making it easy to align with your chair holes; There are two 6-inch bar stool load-bearing plates inside the rotating base, with a black finish and a iron plate thickness of 0.9-1 inches. The heavy-duty rotating high stool/boat seat hardware only takes a few minutes to install, and do not tighten the screws before they are fully activated. Stable and Low Noise: The rotating base uses black powder coated steel ball bearing rotating device to replace the worn seat rotating device. The seat rotating design scheme uses solid steel balls, which rotate 360 degrees in all directions smoothly, with low noise and stability, and are not easy to deform or crush, providing you with a better experience Colour:Black Material:iron Package Contents: 2 x Bar Stool Swivel Replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.