This vibrating lumbar massage cushion gently massages while supporting your lower back helping ease strained muscles and support comfortable posture. Featuring push button control for high or low massage, the lumbar cushion is ergonomically shaped to fit your lower back for comfortable lumbar support. Eliminates tension in back, shoulder, neck, legs and feet. Requires 2 " AA" batteries (not included) Product Dimensions: 15" H X 11.55" W X 3" D Additional Details ------------------------------ Product description: This vibrating lumbar massage cushion gently massages while supporting your lower back helping ease strained muscles and support comfortable posture. Featuring push button control for high or low massage, the lumbar cushion is ergonomically shaped to fit your lower back for comfortable lumbar support. Eliminates tension in back, shoulder, neck, legs and feet. Requires 2 " AA" batteries (not included) Product Dimensions: 15" H X 11.55" W X 3" D