This 3” x 1-1/4” Hard Rubber wheel tread & core offers high impact strength. An economic friendly wheel that is easy rolling. Nylon bearing sleeve molded into the wheel core presents improved rollability. This wheel is immune to oil, grease, and gasoline. High-load rating with good mobility. High-impact resistance and excellent for floor protection. Used on dollies, carts and racks. Temperature range: -40°F to 160°F