SOFT MATERIAL: The donut pillow is made of soft and durable PVC material. non-toxic or tasteless, reusable and durable. For health care, traveling (especially flying), relaxing, sitting on the floor, using a wheelchair, driving, etc. PAIN RELIEVING: These extremely comfortable pillows are ergonomically designed and medically approved. The ring shape distributes body weight evenly without putting pressure on the perineum to relieve pelvic, perineal and anal pain.NO MORE PAIN FROM SITTING: Take control to relieve back pain, hemorrhoids, pressure sores, buttock pain, sciatic tuberosity, prostatitis, sternal pain, pilonid cysts, herniated discs, labor pain, and pregnancy pain.PORTABLE: This pillow is small and light enough to bring with you. The size of the fully inflated pillow is 14.5 inches. When deflated, it is compact and can be easily folded up and put away for travel and commuting purposes.JUST INFLATE - TAKE ANYWHERE: With our supplied air pump you can always inflate your pillow quickly and easily, to pump air into the pillow without feeling breathless and wrapped. The valve on the side of the pillow can be squeezed slightly for maximum comfort and strength.