One of the newest features of ERA Office Chairs is the Roll-Control wheel casters. The patented rc® technology prevents the chair from rolling away from you while you sit or get up, but moves freely while you are seated in the chair. This function is great for users who need added stability upon sitting or standing. A spring-loaded system, it does not require the user to bend down and lock each wheel one-by-one. The locking/unlocking is activated when the user sits or stands.
The compact & closed construction of the twin-wheel caster prevents dirt particles from entering, which provides a clean solution and helps aid in the longevity and smoothness of the casters. These casters are very high quality, with each of the 5 casters boasting an impressive 110lbs weight rating, totaling a 550lb total weight rating.
These casters are specially made to function properly on different types of floors. The Hard-Wheel Casters have a thinner, firmer wheel that is great for use on carpeted surfaces or chair mats. The Soft-Wheel Casters have a thicker wheel interior with a softer finish, made for use on harder floor surfaces such as hardwood or concrete. The Soft-Wheel Casters are designed to not scuff or mark any flooring surfaces.