Amstyle Bari Executive Office Chair with 5-Point Synchro-Mechanism Real Leather Black br Ergonomic and extremely comfortable moulded foam seat pad lowered front for leg relief br Elegant and luxurious upholstery with soft real leather high-quality cowhide br 5-point synchro-mechanism can be individually adjusted based on body weight br Anti-shock feature prevents the back rest from pushing sharply against your back when pulling the adjustment catch br Comfortable executive chair with extra-high backrest