Ergon = Ergonomics.

The first research-based ergonomic office chair, this Classic Chair was first designed by Bill Stumpf for Herman Miller in 1976.  Cushioned contours create a pocket to support your body.  The B size fits an average size person.  Casters, easy to use adjustments, 27" W x 23" D x 34" adj. back height, 18" adj seat height, 27" arem height, no issues.  Perfect for your home office!  Ca 1988.