The Homedics Ultra Slim Shiatsu Massage Cushion with Heat features expanded coverage to massage your entire back. This kneading shiatsu massager relaxes your back by traveling up and down. 3-massage zone control allows you to choose between full, upper, or lower back settings for a custom massage. Soothing heat allows for deeper pain relief and relaxation. The slim-profile massage cushion is equipped with integrated controls and a strapping system designed to fit most chairs.