Item Type: Donut Pillow Material: PVC, silk cotton Color: Gray Size: Approx. Diameter: 39cm / 15.4in Inflation Diameter: 35cm / 13.8in Accessories: Gas pump, drawstring bag Package List 1 x Gas Pump 1 x Drawstring Bag 1 x Donut Pillow 1Suitable For Hemorrhoids: This donut cushion is designed for hemorrhoids, it can be applied to chair, car seat and bed. 2Ergonomic Design: The donut shape cushion can fit for the shape of your hip well and distribute the gravity uniformly to prove you a safe and healthy sitting. 3Easy Carry: The donut cushion is inflatable, provided a pump that will be more convenient to use and store. let out the gas when it is not in use or need to be carried along. 4Avoid Injury: Avoid injury due to hemorrhoids, childbirth, prostate discomfort, anorectal injury, tailbone injury, and postoperative pain. 5Soft And Comfortable: Made of PVC and silk cotton, this seat cushion is durable, soft and comfortable for you to use.