Replacement office chair tilt mechanism, featuring a 7.87" x 5.9" (150mm x 200mm) screw mounting hole pattern.
Designed to accommodate most boss chairs, manager chairs, and mid-back chairs, with a 500 lbs load capacity.
The lever adjusts the chair's height and enables tilting from 3° to 22°.
The knob regulates the spring tension.
Includes a single lever for standard gas cylinder height activation