Features:-The interior is filled with memory foam, which is soft and comfortable, has good resilience and provides strong support.-The lumbar pillow can help relieve sciatica, lower back pain, herniated disc, hemorrhoids or injured tailbone.-The seat cushion can be used to improve poor posture and relieve leg pain when driving or sitting for long periods of time.-The exterior is a convenient, breathable velvet cover with a zipper for easy machine washing. -The lumbar pillow is equipped with two adjustable straps, suitable for various seat sizes.-Suitable for car seat, office chair, wheelchair, computer chair, kitchen, dining room, living room, truck, train, airplane, couch, recliner. Specification:Lumbar pillow size: 33*31*11cmSeat cushion size: 45.