Molten Power Cushion High Type MPWCHL For those who use wheelchairs for extended periods. This is a rechargeable battery-powered cushion for wheelchairs. It alleviates concerns about buttock pain and bedsores during prolonged sitting by distributing body pressure and utilizing the three elements of "automatic pressure adjustment" and "pressure relief." The actual usage frequency is only a few days, so it's in excellent condition. It's an expensive product, but the owner wants it to be put to good use. High Type (focus on seat pressure): Width 38cm x Length 40cm x Thickness 11cm (thickest part 14cm) 1.2kg 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 on specifications: https://www.molten.co.jp/health/products/positioning/power-cushion/