1. Seat height adjustment with height quality pnematic gaslift. 2. Recliner tilt mechanism with seat locking position which provides pleasure in flexible, dynamic seating movement. 3. Tension control adaptable to body weight.		M21-Recliner Synchron Mechanism With US BIFMA standard passed recliner synchron mechanism with 1 seat locking position.		72A-Adjustable Armrest Height adjustable armrest with PP padding on top to provide comfortable resting position for the arms.