Now you can enjoy a soothing, pain relieving, acupressure foot massage in the comfort of your home, and avoid expensive spa treatments. Simply place your feet over the vibrating massage balls to stimulate acupressure points, reduce stress and ease pain. Req. 2 "AA" batteries (sold separately). ABS plastic. Approx. 7 3/4"L x 5 1/4"W x 3"H.