This is a single-type cushion using 3cm thick Geltron. It can be used on either side, allowing you to choose your preferred sitting comfort. With excellent pressure distribution and vibration absorption, it reduces fatigue from long hours in a wheelchair, desk work, and driving. It can be used not only on the buttocks but also as a lumbar or back support. It can be used in all situations, not just for nursing care. (Excerpt from product description) Size: Single 38 x 38 x 3.5 cm Cover: Polyester Zipper on the back Home-laundered Manufacturer's suggested retail price 14,000 yen (tax included) Purchased in 2024 for the improvement of pressure sores. Used for about two months in a wheelchair. I am selling it while it's still new. If you are interested, please consider purchasing it.