Drkowl Acupressure Clip can be used by everyone at any age who may suffer from headaches tension health imbalance or discomfort. You can wear your clip from 5 minutes to several hours. When on your hand your Clip should press firmly on your LI4 pressure point so it won't slide around. Make sure your Clip is on your pressure point if higher up it will press on your bone causing discomfort and possible bruising. For the best results wear Clip on your non-dominant hand on the LI4 acupressure point which is located between the thumb and forefinger.