235-SYS
office chair, high backrest, SYS synchronous mechanism with side tention adjustment, UP-DOWN height-adjustable backrest, black nylon five-star base, castors, pneumatic lift mechanism (price does not include armrests)
235-AT
office chair, high backrest, AT synchronous mechanism, UP-DOWN height-adjustable backrest, black nylon five-star base, castors, pneumatic lift mechanism (price does not include armrests)