1. Size: Chair cushions are available in 7 sizes: 70 x 70 cm, 80 x 80 cm, 90 x 90 cm, 100 x 100 cm, 110 x 110 cm, 120 x 120 cm, 130 x 130 cm, and 13 colors to choose from. They are designed to fit snugly over the shell seat cushion of the chair, allowing you to select the cushion that matches your chair and adds more ambiance to your home. 2. SkinFriendly FabricThe chair cushion is made of cottonlinen fabric, meticulously layered and processed. It won't easily fade or deform after longterm use and can withstand frequent use. The soft, delicate fabric and skinfriendly surface let you relax comfortably on this cushion after a long day. 3. Fully FilledThe chair cushion is filled with quality pearl cotton, which has elasticity and won't easily deform or collapse after prolonged use. The padding is very plump and thick, providing comfort while sitting and offering ultimate support. 4. Washable Removable CoverThe strap design prevents the round seat cushion from slipping easily. A zipper is sewn into the seam of the cushion, making it easy to remove and clean. The filling can be taken out directly through the zipper for cleaning. The cushion's surface can also be easily wiped clean with a damp cloth.