The Homedics Therapist Select Shiatsu Massaging Cushion soothes full, upper or lower back with a unique shiatsu massage mechanism. The cushion offers a deep kneading massage with a moving massaging mechanism that travels up and down the back to help deep aches and pains. A removable cover provides a cushioned layer for extra comfort; the unit attaches easily to most seats and chairs for use almost anywhere. The simple programmable hand control lets you customize your shiatsu massage for ultimate relaxation and rejuvenation.