RENPHO S-Shaped Shiatsu Back Massage Seat Cushion with Heat and Vibration. As a company that specializes in massage devices, RENPHO is dedicated to research, design, production, development, marketing and customer support. With RENPHO back massage chair pad, you'll be able to enjoy professional therapist grade massage on your shoulder and back in your own home, office. The portable massage chair combines shiatsu, kneading, rolling, vibration and heat function to help you melt your stress and tension away, relieve degenerative disc disease pain and sciatica, improve blood circulation. Attention: Back massager: 28.3 in. L, Seat massager: 16.9 in. L x 14.6 in. W, please confirm if it's suitable for your size. If your back height is between 20 in. and 24 in., then this product is more suitable for you. It is not recommended to use in a car, it may distract you and affect your driving. If you press the Back Spot button, you will make the massage head stop to concentrate on 1-area for pin-point massage relaxation. Why Do People Choose the RENPHO S-Shaped Massage Cushion. S-Shaped design fits the curvature of the human spine more Safe, durable and easy to use Strict quality testing before leaving the factory. Color: White.