• ♦ Set of 5 All with Unique Brake System -- Each Hard Duty Office Chair Casters is 2.5 inch, fits most office chairs. All these chair casters have brake system to help you control the casters when you want it stop rolling.
• ♦ Easy Installing with Screwdriver -- Simply pull off your old casters from your office chair. Then firmly insert the new chair casters replacement and make sure they are secured to the chair. The screwdriver that comes with will make the installing much easier.
• ♦ Protect All Floors without Plastic Mat -- AGPtEK office chair wheels are for all hardwood floors. They roll around the office or home with ease and you don’t need to worry about scratching up or damaging your floor. These roller wheels will protect all type of floors including tile, carpet and hard wood floor.
• ♦ Universal Fit -- Our office chair casters are designed with universal standard. They fit almost all standard office chairs sold in the market.
• ♦ Smooth & Quiet Rolling -- You can roll around the office or home smoothly due to the precision ball bearings of the caster swivel and axel. It won’t make any squeaky sound. (It is not compatible with I-K-E-A chairs, OUR STEM SIZE - 7/16" (11mm) x 7/8" (22mm))