Dual Lock Control & Adjustable Spring Tension
Mechanism M1 includes left and right adjustment handles that control chassis locking, giving users better control over their sitting angle and tilt preferences. Additionally, the rotating spring box enables fine-tuning of spring tension, allowing users to set the desired resistance for reclining. This combination of features makes the M1 mechanism a durable and adaptable replacement solution for chair repair technicians, office maintenance teams, and furniture workshops.