The simple design of the Reflex Ball massages the skin and muscles using the 230 densely packed, raised points on the ball's textured surface. The increased blood flow stimulated by the massaging action helps to remove muscles tension, while the dimples affect the sensory organs of the skin, increasing afferent stimulation of the nervous system. This is particularly important when dealing with the soles of the feet. Reflex can be used for a variety of massage techniques to relive stress. The Reflex Balls are firmer and slightly smaller than the smallest Sensy Ball. They make a very nice little gift idea for everybody. Massage your feet & relieve stress after wearing unsupportive shoes like high heels. Lean against a wall and roll over your back or neck to massage and relieve tension