Extra Large Memory Seat Cushion 21.5 * 17.7 * 4inches? Ultimate Comfort for Office Chairs and Cars, Premium Quality and Durability(Gray) Description Extra Large Design: Measuring 21.5*17.7*4inches, our seat cushion is significantly larger than most other office chair cushions on the market. This extra space ensures an excellent fitting for all, offering maximum support and comfort for long hours. Exceptional Support: Designed for offering maximum support, the seat cushion conforms to your body's shape, maintaining your posture and relieving pressure points while you sit for extended periods, whether in an office chair or car seat. 3.Long Lasting Comfort: With its high resilience, the seat cushion provides excellent comfort even after prolonged use. The high-quality retains its shape even after hours of sitting, ensuring consistent comfort. 4.Versatile Use: The cushion is a perfect fit not only for office chairs but also for car seats, making it your ideal companion for long journeys and office hours. Transform any hard surface into a comfortable seat. 5.Easy to Clean: The removable cover of the cushion makes it easy to clean, ensuring your seat always feels fresh and clean.If you are not satisfied, please contact us and we will solve it for you within 24 hours. Shipping We only ship items to your registered address for fast and accurate shipment. Thanks We will ship most orders within 1 business day some items ship same day if ordered early enough Delivery All shipments are shipped via USPS First Class (2-6 business day) from United States. Return Policy All items qualify for returns within 30 days of receipt. Feedback 1.We strive for 5 star positive feedback. We try our best to offer the best service for our buyers. 2.Please message us via before leaving negative feedback.Let's solve the problems together! 3.Please give us a chance to resolve any issues before posting a feedback. 4.Please contact us with any questions or concerns. Thank you for your watch. We look forward to serving you.