Unusual 'Mars' chair designed by Konstantin Grcic in 2003 for Classicon Germany. The Mars chair is a truly unique phenomenon. By ruthlessly dispensing with right angles, Konstantin Grcic has given it a surface geometry made up of slopes and edges, revealing a new surprise from every point of view. Good to know that this avant-garde chair still fulfills all of the prosaic requirements of everyday sitting. with a slight inclination to the rear, the lowered seat hollow makes it extremely comfortable. The base is made of rigid polyurethane. The seat is of tubular steel with polyurethane upholstery and it has a black fabric cover. Top-notch handicraft! The chair is in very good condition. One glider underneath the chair is not original. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution