The pillow is made of memory foam material that conforms to the shape of your neck and back, providing maximum support and comfort. The pillow acts as a lumbar backrest cushion, helping to reduce strain on your back and improve posture while driving. The pillow can be used as a car headrest cushion, providing additional support and comfort for your neck and head during long drives. The pillow provides protection to your neck and back from the hard surface of the car seat, preventing strain and discomfort. Material: breathable fabric, Filling: memory foam, Colour: black, grey, brown, Headrest size: 31*13.3*19.5cm, Lumbar cushion size: 42.8*34*6cm