Size-S: suitable for backrest height: 45-56cm; M: suitable for backrest height: 57-65cm; L: suitable for backrest height: 70-80cmMATERIAL- Made of polyester and spandex, they are soft and comfortable, resistant to pilling, with fine workmanship and neat stitching. They are soft and durable. Package only includes chair coversFULL PROTECTION - These pillow covers are super soft and comfortable, natural and environmentally friendly. It covers the backrest and seat of the chair, which means two important parts of the chair are protected. Protect your chair from dust, stains and scratches and extend the life of your chair while maintaining a luxurious and glamorous look. Ideal for families with children and petsAPPLICATIONS - Seat covers can be used for swivel chairs, table chairs, armchairs, home, office, meeting areas, etc. It is ideal for chairs if you want to improve the appearance of the chairEASY CARE - No wrinkles. Machine washable, easy to care and maintain, machine wash gently in cold water alone, do not use bleach. Buy more sofa covers