General description These 5 Pack Universal Office Chair Casters Replacement Wheels are designed to enhance the functionality of your office or home seating. With a silent and abrasion-resistant design, these wheels provide a smooth and quiet experience while protecting your floors from scratches and marks. Technical specifications Wheel size: 3 inches Stem size: 11X22mm Weight capacity: 550-650 lbs Bearings: High quality ABEC-7 Installation Easy installation without tools or hardware required. Designed with a universal standard size stem for compatibility with most office chairs. Usage Ideal for use on various floor types including vinyl, wood, tile, laminate, and concrete. Provides a quiet atmosphere suitable for office or home environments. Allows for 360-degree rotation for easy movement and maneuverability.