RUBBER WHEELS FOR SWIVEL CHAIR These casters are designed for office chairs. They fit most executive chairs and office chairs. This product is brand new. They are made of rubber, so the floor is not exposed to scratches. Compared to regular wheels, these are quiet and do not slip. The set includes 5 wheels. Specification: color: black material: rubber - PU diameter of the wheels: 5cm set weight: 0.45 kg mounting diameter 11mm Information: We make every effort to ensure that the colors of the furniture shown in our photos are reproduced as accurately as possible. However, please note that their appearance may vary depending on individual monitor or screen settings (such as brightness, contrast, color temperature, or display technology). The actual shade of the product may also vary depending on lighting conditions. Any color differences are not due to a product defect.