Super Soft Gel & Memory Foam Combination- Made with premium quality 100% super soft memory foam infused with a cooling gel top layer to provide additional comfortable support. The gel layer reduces heat and uncomfortableness of long-term sitting. Suitable Size for Most Seat - Diameter 13.5x13.5x1.5 inches (35x35x3.8 cm). The round dining room chair cushion pads are suitable for most office chairs, desk chairs, dining chairs, car seat and airplane. Easy to Clean - The seat cushion cover is made of high quality short plush fabric. Pullover cover makes it easy to clean and care.