What does the Knob below the chair do?

What does the knob below the chair do ? The round knob below an office chair typically controls the chair's tilt function. By turning the knob clockwise or counterclockwise, you can adjust the tension or resistance of the chair's backrest when leaning back. This feature allows you to customize the reclining experience according to your preferences. When the knob is tightened or turned clockwise, it increases the resistance, making it more difficult to recline. This setting is useful if you prefer a more upright sitting position or if you want to engage your core muscles while sitting. On the other hand, when the knob is loosened or turned counterclockwise, it reduces the resistance, allowing the chair to recline more easily. This setting is ideal for relaxation or when you want to lean back and take a break. It's important to note that not all office chairs have a tilt function or a knob for adjusting it. The presence and functionality of the knob can vary depending on the specific chair model and design.