Set of single and semi-double dehumidifying sheets. The two cost around 7,000 yen. I purchased them on Amazon, but I barely used them and have been storing them at home. The moisture sensor is also unopened. They have been home-cleaned. [Brand] Sleep Design Labo [Sizes] 90 x 180cm, 110 x 180cm [Functions] Deodorizing, anti-mite/mold, dehumidifying, condensation control [Features] Machine washable, with moisture sensor [Purchase Date] July 2023 *Please remove the moisture sensor when washing. Please understand that these are items stored at home before purchasing. [Moririn] Semi-double dehumidifying sheet 【Washable Dehumidifying Sheet】 Moisture-proof sheet Anti-mold sheet 【Sheet to put under the futon】