General description These 5 Pack Universal Office Chair Casters Replacement Wheels are designed to enhance your office or home seating experience. With a silent and abrasion-resistant structure, these wheels provide a smooth and quiet operation while protecting your floors from scratches and marks. Technical specifications Wheel size: 3 inches Stem size: 11x22 mm Weight capacity: 550-650 lbs Bearings: High quality ABEC-7 Installation Easy installation without tools or hardware 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 Creates a quiet atmosphere, making it suitable for office and home environments Allows for 360-degree rotation for easy movement