As a result of using this Industrial and Scientific product, I found that these casters are highly efficient for moving heavy loads in our factory. The swivel feature makes it easier to steer with minimal effort, and the degrees locking mechanism ensures safety while being used on inclined surfaces. The polychloride material prevents any damage due to corrosion or rust. However, the assembly process was a bit complicated and took longer than expected. Overall, I highly recommend these casters for anyone looking for a durable and efficient material handling solution.