8T8 2" Replacement Office Chair Caster Wheels Heavy Duty Solid Rubber Safe for Hardwood Tile Floors (7/16x7/8 Stem Black) [HEAVY DUTY] Excellent manufacturing process of solid wheels and double hard steel brackets enable to hold over 150 lb per wheel [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 push the new wheels in, universally fit for various standard seats: work stools, office chairs, dining chairs, desk wheels, tool carts etc [PACKAGE] 5 x Replacement Office Chair Rubber Casters in a Box (Wheel: 2"x0.8" / Push Stem: 11x22mm)