Varier Human Instruments born of a human idea - Your body is engineered for movement. Activity is essential to its well being. A conventional chair is an instrument of inactivity, fundamentally unsuited to the human body. We don't make conventional chairs. We create precision human instruments to keep your body in its natural state of activity. Human Instruments Collection offers chairs for desk work, home office and dining, that promote movement and variation to keep the body in its natural state of activity. The unconventional design keeps the spine in its natural curvature and the spinal disks dynamic; blood circulation is active and oxygen supply is improved, leading to better concentration and overall well being. Features: -Eco friendly beech wood frame construction harvested from a sustainable source in Europe. -Runners and shin rests promote an open and dynamic sitting position which allow for deeper breathing. -Sets body free to find its own equilibrium which keeps your back and abdominal muscles working. -Tension in back and shoulders is prevented, this 'active sitting' improves circulation and oxygen levels; thus concentration and creativity during your work. -Manufacturer provides 7 year warranty on wood and 5 year warranty on metal. -Overall dimensions: 41" H x 22" W x 36" D.-This item is non-returnable.