About this item ❤【Ergonomic chair seat cushion】：It completely wraps the buttocks and adopts a widening and enlarged design that is very suitable for the buttocks. It reduces the pain of the legs, back, buttocks and sciatica. It is designed to reduce the pressure on the lower back, waist, buttocks and thighs and provide comfort. The ergonomic design helps increase blood flow and relieve muscle fatigue. ❤【Lightweight portable chair cushion】：The size of the cushion is 18" x 15" x 4", and the weight is about 0.5KG. It is very light and easy to carry. You will find it a perfect solution for kitchen chair, living room chair, couch, recliner, office chair,car seat, airplane, wheelchair. It can make a perfect holiday gift. ❤【Obvious effect】: Our Seat Cushion has proven to restore your spine's natural lumbar curve to the correct posture. You will feel instant relief from lower back pain, numbness and pain from sciatica, herniated discs, tailbone injuries, back pain from pregnancy, hip pain, hemorrhoids, and pressure sores. ❤【All-in-one high-density memory foam cushion】: Made of skin-friendly short fleece fabric, soft and delicate texture, not easy to fall off and pilling, moisture absorption and breathability. The bottom is designed with non-slip glue dots to increase friction and ensure that the mat stays in place. And it will not move or slide on any surface. Made of high-quality 100% memory foam, it has good elasticity and rebounds quickly within 3-5 seconds. Zipper design, easy to take apart and wash. ❤【Complete Guarantee】：After dozens of repeated revisions, hundreds of consumers’ research feedback, and most people’s hip structure, the third-generation wrapped cushion has been carefully polished. We focus on studying healthy sitting posture, just to make you sit better. The innovative and ergonomic doughnut pad achieves the perfect balance between comfort and support. Customer satisfaction is our top priority. If you are not 100% satisfied, you can guarantee a refund.