I sit on these rolls while writing. They hold a tall, stylish Ralph Lauren chair and not only give it good roll but extra height as well. They are beautiful and work great. One star held off because they didn't include instructions and when I looked them up online the instructions said to drill a hole in the chair which turned out to be too big. So I had to fill up with wood putty and start over with the next size drill bit. Which worked great. Instructions should be included and be very clear and specific to the product.