The Gel Seat Cushion for Long Sitting is a portable and ergonomic solution for comfortable seating. Its honeycomb design provides pressure relief and support, making it ideal for long periods of sitting. The U shape design fits most chairs and the cushion has a size of 17.75" x 13.75" x 1.75". The cushion also comes with a removable and washable cover for easy maintenance. Upgrade your seating experience with the Gel Seat Cushion for Long Sitting.