The product is a set of black castors and wheels designed specifically for office and executive chairs. With a maximum weight capacity of 200kg, these castors provide smooth and reliable mobility for office chairs, ensuring ease of movement around the workspace. The sleek black design adds a touch of sophistication to any office chair, enhancing both functionality and style in the workspace. Ideal for creating a seamless and efficient work environment, these ROLO black castors are a practical and essential addition to any office setting.