1. Material: Made of polyester and spandex, this soft and stretchable fabric is wrinkle-resistant (Includes both seat cover and backrest cover). 2. Suitable Size Range: These chair covers fit seat cushions with a length of 35-43cm, a width of 35-43cm, backrest widths of 37-45cm, and backrest heights of 17-23cm. Please measure your chair before ordering. 3. Fit Closely with Chair: The bottom of this cover offers excellent flexibility, ensuring that both the backrest and cushion covers fit snugly to the chair and are less likely to slip off. 4. Protect and Renew Your Chair: This spandex chair cover helps shield your chair from everyday wear, spills, and stains, keeping it looking brand new. It is an excellent choice for homes with children and pets, making it the perfect addition to your household. 5. Easy to Clean and Maintain: These chair seat covers are machine washable, and you won't have to worry about pilling. They are very easy to clean.