Features: ▲ The surface of the seat cushion ergonomically designed, can your weight distributed to the entire seat, this seat cushion can reduce physical stress. . ▲ High-density memory foam pad ensures that you sit comfortably in their daily lives. ▲ The global orthopedic surgeons and doctors recommend a U-shaped ergonomic design, by reducing the pressure to treat chronic or acute pain. ▲ For car seat, computer / gaming chairs, wheelchairs, office chairs or bus, plane or train seat. In particular, highly useful as a car seat. ▲ helps relieve the following symptoms: sciatica or sciatica, arthritis, lower back, lumbar spine, coccyx, hips and spine pain, backache, sore and a variety of other issues. Product parameters: Material: memory foam cloth + Product Size: 44 * 41 * 7.5CM Applicable scene: Indoor, office, car, outdoors, sofa Color: many colors Product List: cushion*1