Product description: The medical seat cushion helps relieve lower back pain during long drives. Great for office use, driving, and travel - helps address lower back problems, relieves back pain and sciatica. The car seat cushion is designed comfortably, providing support and comfort while reducing pressure on the lower spine thanks to the U-shaped design and promotes a healthy posture. Suitable for office chairs, during driving and travel - provides comfort on most hard surfaces such as office chairs, table chairs, kitchen, car seat, airplane, rocking chairs, and wheelchairs. The cushion is made of memory foam to treat lower back pain, coccyx, spine, sciatica, disc, and herniated disc. Used for all chairs and as an accessory for travel. Helps straighten and correct your posture, with maximum support along the natural curves of the lower back. Protects you from sitting incorrectly in harmful positions.