About this item【Comfortable and Durable】Seat cushion for coccyx orthopedic seat cushion made of soft flock fabric, lined with PVC airbag, durable, anti-allergic, comfortable and environmentally friendly, Soft and durable material adapts to your body and offers excellent cushioning while resisting punctures and leaks.【Easily Inflated】The seat cushion for coccyx ring is quick and easy to inflate with your mouth or the attached air pump. Other pillows are difficult to inflate and can cause shortness of breath. The pillow is equipped with an upgraded valve, it only takes about 10-15 seconds to inflate. 【Pain Relief】The ergonomic ring design, hemorrhoid seat cushion the weight evenly, reduce your pain and discomfort when sitting or infection with.