Office Chair Caster Wheels: Five-Piece Set That Is Sturdy And Secure On All Product Features ? PROTECT YOUR FLOORS AND MONEY?Stop damaging your expensive hard wood floors. Many chair wheels use cheap, low quality materials that destroy your flooring. We don't. Encased with soft, polyurethane material our new style wheels are guaranteed not to scratch or leave marks on any surface. So feel free to finally toss that old computer chair floor mat! ? RELIABLE HEAVY DUTY CONSTRUCTION. Entire support bracket and internal parts are made of high grade steel, providing years effortless rolling and durability. The heavy duty design supports up to 650 lbs as a set of 5. ? ENJOY SMOOTH QUIET GLIDING. Smooth and Quiet Rolling; Our precision ball bearings combined with vibration reducing polyurethane tires will give you a smooth and silent roll. They roll amazingly on hardwood floors, carpet, tile, concrete, stone or vinyl. ? DIFFERENT FROM TRADITIONAL WHEELS!: Have solved that traditional chair wheels get tangled with carpet, hair, and scratches on floors. Protect your expensive hardwood safe. ? USER FRIENDLY - Very Easy to Install; No tools required; Pull out your old office chair casters and push in your new wheels until stem is firmly seated and secure. - 1-year Warranty - Money Back Guarantee.(It is not compatible with I-K-E-A chairs, OUR STEM SIZE - 7/16" (11mm) x 7/8" (22mm)) Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!