Lumbar Support Back Cushion Features: Four seasons available, detachable cleaning, memory cotton core, soft and comfortable, zipper design, strong support, breathable comfort, not easy to deform。 car lumbar support Applicable to office workers, students, teachers, pregnant women, drivers, the elderly, recovering from surgery, etc. Multi-function: relieve your sciatica, relieve the numbness of your back, disc herniation, reduce the damage of the tailbone, pain the lumbar support pillow can relieve lower back pain, etc. Car Lumbar Pillow Cushions Support Back Cushion Memory Cotton Core Four Seasons Available Not Easily Deformed Removable Cleaning, This backrest is made of wood beads