specification: Item Type: Bedsore Cushion_x000D_Material: PVC_x000D_Diameter: Approx. 38cm / 14.96in Features: 1Reduce Pressure: Inflatable donut cushion can effectively eliminate soft tissue pressure, added comfort to any chair, bencher or wheelchair. 2Prevent Bedsore: Bedsore cushion used to prevent bedsore, can be placed on the stool chair or wheelchair, provide a comfortable sitting. 3Good Sealing: Inflatable cushion with a pump for easy inflating, adopted soft plug design to ensure gas tightness and prevent leakage. 4Suitable Diameter: Inflatable butt donut pillow is 38cm / 14.96in in diameter, which is a suitable size to help you sit more comfortably. 5Comfortable Use: Nursing bed sore pad is made of high quality PVC material, breathable for summer use and comfortable for winter use. PackageList: 1 x Bedsore Cushion 1 x Pump