hjh OFFICE Ergohuman Professional office chair with flexible lumbar support, original design, padded seat, mesh back, black The second generation of our proven Premium Ergohuman series. This executive chair offers maximum comfort, a robust aluminum frame, and complete ergonomic seating features. It meets the safety requirements of DIN EN 1335 Parts 1 3. The point synchronized mechanism for adjusting the seat and backrest tilt is individually adjustable to your body weight and can be locked in 5 positions, with a maximum opening angle of 141. When fully reclined, the chair