tekbotic's Headphone Stand is assembled with metal screws which can loosen over time giving your stand a wobbly feature.
You can simply tighten up the screws by flipping the stand over and adjusting the screws in the base to make it more firm.
If the first section does not solve your problem. You can unscrew the base from the poles completely. Then once the poles are detached from the base, you can tighten the poles and leather padded hanger top with your hands.
Once you have tightened the hanger pad and attached the poles back to the base firmly, your stand should be in tip top sturdiness again.