Replace your old castors on your office chair with 22 mm swivel castors for universal chairs. In just a few seconds, you can transform your chair into a smoother, more floor-friendly workplace. Tired of worrying about damaged floors caused by conventional chair castors? These castors are the ultimate solution. The floor-friendly design prevents scratches and stains, making them the ideal choice for all floor types, whether hardwood, tile, laminate or carpet. Preserve the beauty of your floors while enjoying the comfort and durability of your office chair. Fitting these castors is easy. Simply pull the old castors out of your office chair and snap in the new castors - no tools required.