Our round cushion is made with premium quality 100% memory foam and short plush fabric, which provide you a super soft touch and additional hip elastic support to reduce the uncomfortable caused by the long-term sitting. meanwhile, the pure color of the velvet fabric can be perfectly matched with most home decoration styles. Size Diameter 18 inches (45 cm). This size is suitable for most chairs, and the height of 5 cm will give you the most comfortable feeling. Covers material We used the premium quality fabric to make the cover, which is dense enough to support long-term use. And the short plush fabric also has a very good touch and the color is pure and vivid. This makes our cushion easily to match your home improvement style. Memory Foam Insert High-quality memory foam can effectively alleviate hip deformation, pain and various diseases caused by long-term sitting. If you are being plagued by these problems, please try our cushions boldly! Invisible zipper Our design team specifically added a hidden zipper for this cushion. This design ensures that you can wash the cover easily to keep the cushion clean, and it will also not affect the overall pure style of the velvet fabric. Multiple colors We have six pure colors for this cushion to choose from. Includespink/ light pink/ dark grey/ light grey/ white. There is always a color you will like. Or you can also choose from a variety of colors to match your home improvement style. Note: The cushion is placed in a vacuum sealed package. Usually, it will regain its intended shape within 24-48 hours after opening the package.