Thank you for viewing. This is a set of two air cushions. ① 890mm (length) x 585mm (width) x 40-50mm (height when inflated), light green ② 410mm (length) x 410mm (width) x 40-50mm (height when inflated), light maroon Both have been used about three times, just for fitting. Cushion ① has stains as shown in the photos due to poor storage. Cushion ② has no noticeable scratches or stains. The category is pressure sore prevention supplies, but they are not considered pressure sore prevention equipment for welfare purposes. These cushions are for distributing body pressure on the buttocks and back, etc. If using them in a wheelchair, it is recommended to check the dimensions of the seat.