This is a Tempur donut cushion. I've used it for many years (about 10 years), but I no longer need it. It's still usable, so I'd like to pass it on to someone who can use it. The outer cover is washable at home. (It will be given to you already washed) Size: 40 x 42 x 5 cm Please understand that this is a used item before purchasing. You can purchase it directly, but if you have any questions, please comment. It will be sent via Rakuraku Mercari delivery in a nylon bag and paper bag, with anonymous shipping.