Designed for maximum muscle relief. Five large massage balls protrude strategically from the base to target and dissolve muscle knots embedded deeply in the body. Stimulates the precise, powerful pressure of shiatsu massage. 5 1/4 x 6. Earth Elementals. Accupressure Body Massager Massages away tension & stress. For soothing all over massage- (especially good for the back). To target special problem areas. Enjoy in good health.