This orthopedic memory foam seat cushion will add outstanding comfort to any seat, whether it be your car, desk chair, work chair, school desk, airplane seat, wheelchair or any other place that you may sit. It has the perfect softness to support ratio. It will provide you with amazing pain relief. Unlike our competitors, our cushions are made of premium quality, self-molding memory foam that quickly responds and conforms to the contour of your body and does not flatten out after extensive use. The ergonomic design helps to relieve pressure on the tailbone and encourages proper spine alignment. This will help relieve tailbone and/or lower back pain. Our memory foam is 100% medical grade and will not flatten out over time. Great for sciatica, broken/bruised tailbone, hip pain, truck drivers and much more. Comes with removable covers. Just toss them in the washer for easy cleaning. Scroll back up and click on our second photo to see everything that is included with your purchase. The cushion measures 14 x 18 x 2.5 inches. SATISFACTION GUARANTEED OR YOUR MONEY BACK!