Aculief provides pressure to the LI4. The LI4 acupressure meridian is located on your hand between the thumb and forefinger and has been used for thousands of years as one of the most effective acupressure points for immediate tension relief and restoring your body's natural flow of energy and relieves headaches & tension. Acupressure to the LI4 works to relieve imbalances throughout the body and restore your natural life energy known as Qi (chee) in Traditional Chinese Medicine for a holistic healing. It has been designed to apply this pressure consistent with Acupuncture Techniques without the down time. Aculief is wearable acupressure for active lifestyles!!