Specification Brand : Vive Color : Black Label : Vive Health Manufacturer : Vive Health MaterialType : Memory Foam PackageDimensions_Weight : 3.99918543268 PackageDimensions : L:17.99999998164 X W:15.99999998368 X H:2.99999999694 ProductGroup : Kitchen ProductTypeName : BODY_POSITIONER Publisher : Vive Health Size : Medium SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41s9xjVVfLL._SL75_.jpg SmallImage_Width : 75 Studio : Vive Health Title : Vive Waterproof Wheelchair Cushion- Water Resistant Seat for Car and Office Chair- Coccyx and Lumbar Support with Memory Foam for Tailbone Pain- Removable Zipper Cover(Black, Medium) Weight : 4 WeightUnit : pounds