Ergonomic S shaped back massager cushion conforms to the natural curve of the spine, delivering full back support and comfort. Heat and vibration: The built in heating function warms the back while the seat vibration provides three levels of intensity to relieve tension in the hips and thighs. Flexible and secure use: Portable massage cushion that can be used on a variety of chairs from office desk chairs to dining chairs; integrated strapping system keeps it securely in place. materials and maintenance: Crafted with luxury PU leather and breathable mesh; sturdy, easy to clean and maintain. Gift ready: An choice for anyone in need of muscle relaxation, combining comfort, durability and versatile use. Use scenarios: Office desk chair: place on your work chair to reduce back stiffness and improve comfort during long sessions. Dining chair or study chair: use during meals or study time to relieve lower back tension and promote relaxation. Various seating environments: move easily between chairs in the living room, home office or other seating to maintain consistent support and comfort.