Granth Velvet Bed Mattress Leg Massager with 9 Motor and 9 Soothing Heat (160x55 cm, Black)INTELLIGENT DESIGN: inbuilt high frequency massage balls of nine levels, shiatsu kneading massage for the neck, shoulder, back and thighs and the lower back area provide deep massage HEAT THERAPY: It has great effect in promoting metabolism, improving blood circulation, removing blood stasis, dredging the channel HUMANIZED DESIGN: of concave convex surface of the cushion makes the effect more obvious when using, heat therapy, vibration massage, double