used for one month. Relatively new, bought in December 2023. Great condition. pretty much new. LONG-LASTING COMFORT: A great option for office chairs, the Double Seat Cushion features two layers of Grid to keep you supported – even when you're working overtime. NO-PRESSURE SUPPORT: The Grid cradles your tailbone while cushioning the rest of your seat. COOL COMFORT: Hundreds of air channels paired with a temperature-neutral material mean you're not stuck with a sweaty seat. DURABLE: Engineered to bounce back and withstand wear and tear from normal use. (It's even covered by a one-year warranty!) EASY TO CLEAN: Throw the cover in the washer and clean the grid with soap and water. NO-SLIP DESIGN: With an anti-slip bottom, the cover ensures that the cushion stays in place.