HIGH QUALITY - Our OfficeSpin office chair wheels are made of industrial-grade steel and high-quality polyurethane, which can make a world of difference in the performance and longevity of the casters. Built-in rollers enable smooth and quick movement in multiple directions, effectively minimizing vibrations caused by frequent movement FLOOR FRIENDLY DESIGN - Unlike many office chair replacement wheels made from low-quality materials that can damage your flooring, our roller blade wheels are wrapped in soft polyurethane, ensuring they won?t scratch or leave marks on any surface, whether it?s hardwood, carpet, tile, laminate, or more EASY INSTALLATION - No tools needed! You can replace the office chair casters on your office chair in under 3 minutes. Just remove the old wheels and snap in the new ones, which is very simple UNIVERSAL FIT - Designed with a universal stem size, the wheels for office chair fit nearly every office chair available (Not usable for IKEA chairs. Please check the size of your wheel stubs before ordering) HOLDS UP TO 650 LBS - Crafted from high-quality materials, these chair wheels replacement are made to last. Featuring heat-treated steel, precision ball bearings, and resilient polyurethane, the desk chair wheels replacement offer smooth rolling for years. These heavy-duty wheels can easily support up to 650 lbs Product description