We have a large quantity available. These chairs were made in Germany by Vitra, designed by Antonio Citterio. It’s their ID Trim ergonomic office task chairs. Very well built. These have the upgraded polished aluminum loop arms. The chairs are height adjustable, with tilt tension control, tilt lock, seat depth adjustability, and adjustable arms. In this configuration, chairs retail for $2,250 EA. Selling for $350 EA. Approximately 60 chairs available. Please email me if you have any questions. Thank you.