Floor Protection Design - Protect flooring including vinyl, wood, tile, laminate, concrete from marks and scratches. Superb weight capacity: 550-650 lbs weight capacity. Our Premium Caster Wheels casters apply high quality ABEC-7 bearings. Smooth and Quiet: Our caster wheel stand and internal parts are made of stainless steel and are extremely durable. It's super quiet and smooth while rolling, everyone in your home won't be disturbed when you're working. Easy Installation: Tool-less, just pull the okd casters and push your ones in. Then enjoy your ultra luxurious modern casters. Smooth and Quiet: Our caster wheel stand and internal parts are made of stainless steel and are extremely durable. It's super quiet and smooth while riding, everyone in your home won't be disturbed when you're working. Give your chair a life with Quiet and Durable to Floor Abrasion Our office chair wheels are a revolutionary upgrade to the standard office chair. Just remove the old ones and push in your wheels. You will experience the best chair wheel replacement feeling. Please check your stem measurements carefully before ordering. Please see full product description. Special beaver wheels for computer chair, swivel chair, office chair, furniture, computer desk and crib etc. Features: - Universal 7/16'' (11mm) x 7/8'' (22mm) stem. - 3 wheels 'make it faster and smoother to roll. - Quiet operation. - Won't scratch wood floor. - Sturdy construction.< /p> - 130 lbs per caster / 650 lb load for set of 5. - for schools, classrooms, home offices and more! Packaging: 3-inch Office Chair Caster Wheels (5-Pack)