Black Humanscale Diffrient World Mesh Back Office Swivel Desk Chairs Ergonomic and Adjudtable. 10 Available
These Chairs are designed for maximum comfort long periods of time in Chair. Read Googles raving reviews 
The Chairs are Seat and Arm height adjustable with a Seat depth adjustment. the chair is brilliantly designed. the back will lean a little back with you and the seat moves slightly forward to the body to remain with maximum comfort
The condition is good all functions work fine. odd very minor marks only
the next paragraph is about the designer
Designed by Niels Diffrient.
Recognized as the father of ergonomics, legendary designer Niels Diffrient focused on the human experience to inspire innovative products. He revolutionized task seating byby inventing a chair that adjusts to the sitter, rather than making the sitter adjust to the chair.
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