A five-year development phase, combined with Wilkhahn?s four decades of expertise in dynamic seating, has produced ON. ON gives our bodies the freedom to sit the way they want and can. At ON?s core lies Trimension®, three-dimensional synchro-supporting kinematics with swivel points that precisely follow the positions of and scope of movement in the knee and hip joints. It stimulates a variety of natural postures and movement that allows the body to maintain perfect balance. The movement concept is simplicity itself and integrated into the design. ON offers clarity, space and a relaxed appeal. ON immediately conveys trust, value and comfort. The chair?s visual form follows intuitive function. By pressing two buttons to rapidly adjust the counter pressure, ON is immediately ready to go. Armrests, backrest height and optional seat depth adjustment can also be altered while seated without additional levers. The wide product range ensures coherent furnishing solutions.