As a safety feature, the chair won’t move unless it is sat in. Once you sit in it, the brake is released and allows the chair to roll freely. This is important for those who may need to put weight on the arms to lower themselves into the seat, preventing unintended chair movement and reducing the risk of injury.
Safety casters have a two-point stem, shock absorber and special bore construction that prolongs the life of the caster as well as the chair. The closed construction reduces the amount of dirt and hair getting into the caster also prolonging its life.
