Effective Back SupportErgonomic design makes it perfect for waist contours and provides lower back support, reducing fatigue and correcting spinal posture, ideal for people who spend many hours sitting and/or with back painStay Cool And ComfortableDifferent from memory foam pillows, this lumbar pillow comes with a soft breathable mesh cover for allow air circulation, so your back stays dry and comfortable, even after long periods of usebackrest With MassageMesh lumbar cushion with massage granules provides comfort function massage, which can effectively relieve your back or waist stiffness, more comfortablesimple to usethe mesh lumbar support is lightweight, allowing you to take the mesh back support anywhere anywhere and install it in minutes. Size: 30 x 40 cm, with elastic straps, it can be placed on the seat back or on any type of chair with elastic straps