This is an ON Cantiliever Chair, Model 178/7, originally designed by the German design group Wiege and produced by Wilkhahn. Wilkhahn has collaborated with phenomenal designers over the years, though their pieces are seldom seen in the US. The chairs are constructed from chromed tubular steel cantilever frame, with a seat and back that are upholstered in grey leather.The listed price includes one chair and there are more than 12 available to purchase.Each chairs measure 23.6 inches deep, 24 inches wide, and 36.25 inches high, with a seat height of 16.9 inches. These pieces show light wear from previous use, including minor scuffs and scratches. Overall, the chairs are in good to very good condition. Please see photos.