2 Inch Office Chair Replacement Wheels by ATOMDOC, Newly Revolutionary Quadruple Ball Bearing Design，Heavy Duty & Safe Protection for All Floors Including Hardwood, Universal Fit, Set of 5

100% Safe Protection for All Floors - Stop damaging your expensive hard wood floors and carpets. Encased with soft polyurethane material, our rollerblade style wheels are not to scratch or leave marks on any surface. (Please note that with the limitation of 2in, using on the rug with wool over 2cm will be possibly unworkable) Strong and durable - Maximum weight rating: 110 lbs. EACH wheel. The all-metal bearing rod and the bracket made of high hardness polyurethane provide years effortless rolling and durability. The heavy duty design supports up to 550 lbs as a set of 5, the STRONGEST chair wheels on Amazon. Universal Fit &EASY Installation - Orders come with a set of five 2" rollerblade style office chair wheels that can easily be installed without tools or hardware. Simply pull out old wheels and push these into place, Please Check that your chair is compatible. (The stem size is 7/16"(11mm) diameter by 7/8"(22mm) length)(exclude IKEA's) Incredibly Smooth & Quiet - [Newly revolutionary design by ATOMDOC] with four high quality ball bearings on each wheel, ATOMDOC's chair wheels can keep your chairs moving smoothly and quietly. No more squeaking and rattling. your standard plastic castors set and stop worrying about disturbing anyone. ATOMDOC's chair wheels make your chairs look more fashion and more comfortable, which makes you feel satisfied with the fancy office chairs or the ordinary computer chairs. ATOMDOC's chair wheels will be the best choice to upgrade your chairs.