ASHGOOB Office Chair Wheels, Set of 5 Caster Wheels Office Accessories, 3 Inch Heavy Duty Casters for Chairs to Replace Office Chair Mats, Smooth & Quiet Universal Fit for Most Chairs(5 Pack)

["Universal Standard Size: The stem is 7/16 \"(11mm) in diameter x 7/8\" (22mm) in length, suitable for most office chairs on the market. However, before purchasing our office chair wheels, please check the size of the rods of the old wheels on your office chairs first to avoid making a wrong purchase. Important Note: Not compatible with IKEA chairs.","Heavy Duty Caster Wheels: Five casters can weigh up to 700 pounds. Heat-treated high-grade steel, precision two ball bearings and durable polyurethane (PU). Heavy duty caster wheels for office chairs.","Quiet and Smooth: Every detail is designed and strict tolerances are established. The 3\" elastic polyurethane casters slide smoothly on the ground, enhancing comfort and quietness. These caster wheels are great alternatives for office chair wheels replacement parts while upgrading office desk accessories and home office supplies.","Suitable For A Variety Of Floors: These office chair casters are wrapped in a good quality, ultra-thick, unmarked soft polyurethane layer, which will not leave any scratches or marks on any surface even without carpets or chair cushions. It is widely used in office flooring, wood, hardwood, parquet flooring, laminate, vinyl flooring, tile and carpet flooring.","Easy To Install: Plug and play, no tools required! Just pull out the casters of your old chair and replace them with new ones."]