Molten Power Cushion High Type LL Size For people who use wheelchairs for long periods of time. This is a rechargeable battery-powered cushion for wheelchairs. It distributes body pressure and alleviates concerns about buttock pain and bedsores during prolonged sitting through the three elements of "automatic pressure adjustment" and "pressure relief." Purchased December 2023. It is a beautiful item with only a few days of actual use. It is an expensive product, but the owner wants it to be used effectively. High Type (focus on seat pressure): Thickness 11cm (thickest part 14cm) LL size, width 40cm x depth 40cm Images 1-3 are from the manufacturer's website. Images 4-11 are of the actual product. Please refer to the manufacturer's website for details such as specifications. https://www.molten.co.jp/health/products/positioning/power-cushion/