Supporting frame in shaped plywood and solid wood; seat with elastic belt spring system. Seat and armrest padding with different densities. Upholstery in leather, armrests and backrest cover decorated with quilted embroidery and perforation pattern. Curved external structure upholstered in leather. Base in stainless steel with 5 wheels, turnings in aluminium. Rotary piston damper with self-locking drive system and adjustable height. Base can be finished with any lacquer of the metal lacquer finish selection.