The Dynamic has a weight knob at the front, under the seat. After loosening this knob you can shift it up (for a lighter setting) or down (for a heavier setting).
“I received the new chair today & it's made a huge difference. Thank you very much, I love this chair.”
Charlene Rodda
BQ Ergonomics LLC
11888 West 91st Street
Overland park, KS 66214
Office: 877.938.9034