Main feature1. [Ergonomic design] -- ergonomic concave design made of memory foam -- fits the contour of the legs, alleviates pressure, increases blood flow, shapes the hips and reduces back pain.2. [Breathable design] - cartiya tailbone cushion with hollow ventilation center to prevent the spread of bacteria, is the best choice for people with hemorrhoids, prostatitis problems and pregnant women, even in the summer will not be too hot.3. [Unique rear and tail protection] - The elevated end support of the cartiya cushion relieves pressure on key areas around the sciatic nerve. Improve chronic and acute pain, help your child develop proper posture, and avoid hunching.4. [Durable and removable cover] - non-slip and breathable - with a non-slip bottom to keep the mat in place. The zipper cover is washable, ensuring hygiene and long-term enjoyment.5. [Wide range of application] - This cushion is suitable for office chairs, car seats, wheelchairs, any chair at home or bus, airplane, train seats. Suitable for office workers, car/bus drivers, teachers, students, wheelchair users, pregnant women, office workers, etc.Specifications:Name: Memory cotton seat cushionMaterial: Polyurethane, PVCFiller: Memory cottonAvailable size :43*398*7/10cmApplication scenario: Suitable for car, office, dining chair, etcPackage:Seat cushion *1