... rolling, tapping and tap-kneading massage actions. # 73 Series: kneading, rolling and S-motion massage actions. # 11 Series: kneading and tap ... -kneading massage actions. 1) Ergonomic S back and ... S track robotic back massage. 2) 6 massage balls deliver massage actions. 3) 4 Spine-remedy rollers purporting posture correction. ...