Reflexology, deep tissue massage, trigger point therapy, acupressure, acupuncture alternative and shiatsu. This spiked ball is ideal for use on hands, feet, back, neck, legs, shoulders or even head, and it provides a precision myofascial release for better pain management. It also aids in relieving muscle soreness, plantar fasciitis, and sciatica pain as well as improving the flow of energy or qi. a true gift for health.