✔Our Premium replacement caster wheel stem diameter is 7/16"(11mm),stem length is 7/8"(22mm),The heavy duty design supports up to 500 lbs as a set of 5, the STRONGEST chair wheels on Amazon.
✔SOLID RUBBER- Wheel materials are made of high-quality solid polyurethanes, which are high mechanical strength, wear resistance, shock absorption and low-noise
✔SAFE FOR FLOORS- Smoothly and quietly roll around on any hardwood, ceramic tile, wood, carpet, especially cement floors without scratching, please pay attention to safety due to less resistance force
✔EASY TO INSTALL- Simply pull your old casters out, then plug the new wheels in, fit for various standard seats: work stools, office chairs, dining chairs, desk wheels, tool carts etc
✔100% MONEY-BACK GUARANTEE - If these are not your favorite chair wheels you have ever owned, the smoothest and most quiet, return them for a full refund