Sytopia office chair casters with 10mm x 22mm stem, set of 5 large casters for office chairs, super quiet and soft hard floor casters, only compatible with IKEA office chairs, matte black, 90mm height

["【Standard Large Diameter】- The Sytopia office chair wheels have a standard diameter of 3 inches, providing greater stability and better rolling performance. Their load capacity is over 650 lbs, making Sytopia the ideal choice for replacing old wheels.","【Important Note】- The metal pin of the wheels has a diameter of 0.39 x 0.87 inches and is suitable for 1% of office chair wheels. Please note that these wheels are not suitable for most office chair wheels with 0.43 x 0.87 inch pins.","【No Scratches】- The Sytopia wheels are specially designed for hardwood floors, parquet, laminate, or tiles. Their soft rubber surface protects the floor and leaves no scratches or damage.","【Quiet and Smooth Gliding】- The design of Sytopia office chair wheels allows for quiet and smooth gliding, without disturbing the work environment. They enable relaxed and comfortable movement on your office chair.","【Easy Installation】- Replacing Sytopia wheels is quick and easy. Simply remove the old wheels and insert the metal pin of the Sytopia wheels to immediately experience quiet and 360° swivel gliding on your office chair."]