Swivel plate casters are the most popular casters because they allow for easy maneuverability of loads in transit. The swivel capability of these plate casters makes it easy to change direction and pivot or rotate machines or carts whenever necessary. Choose from different sizes and capacities from 2" to 10" wheels and from capacities of 80 to 4,000 lbs. Available at Source 4 Industries in a variety of different wheel types and treads. If you can't find what you're looking for give us a call and we'll get you what you need.