Set of 2 Acupressure Clips relieves tension/migraines, size small This palm-sized clip made of silicone gently squeezes the muscle between your thumb and forefinger to relieve tension, headaches and pain. it can perfectly cover your LI4 acupressure point, effectively relieve pain, promotes the flow of natural energy in your body and make you feel comfortable. Warning: Please do not use if you are pregnant. Uses acupressure to relieve blockage in your "Qi" (pro-nounced "chee") and promote the natural circulation of energy throughout your body. Go about your day with all natural acupressure and find relief. Suitable for right or left hand. Sizing: see above photo suitable for alleviating pain associated with: Headaches Migraines Joint Pain Muscle Pain Restless Leg Pain Directions: May be worn from 5 minutes to several hours depending upon preference. Typically you will notice relief from as soon as 1- 3 minutes and up to 30 minutes.