Heavy Duty Caster Wheels have a large capacity; are weather resistant, highly durable, have a long shelf life; and they are well-liked in the market. Rubber and polyurethane are used to produce castor wheels. These castor wheels are attached to the bottom of a larger object and used to move it around. Heavy Duty Caster Wheels are very easy to use and simple to handle. Casters can be found in a variety of places, including shopping carts, office chairs, toy waggons, medical beds, and material handling equipment.