This is Nitori's "Dehumidifying Sheet that Absorbs Moisture from Futon." Single (90 x 180cm) Gray (Grey) For mold prevention on floors, for mold prevention on beds With humidity sensor Can be reused just by drying in the sun Can also be used for dehumidifying in closets Thank you for viewing. I'm selling it on Mercari because I bought it but don't use it. It's 10% off the Nitori price of 1,490 yen. It's new and unused, and there are no noticeable stains, but please refrain from purchasing if you are concerned, as it is a personal inspection and stored at home. It will be shipped wrapped in bubble wrap.