Waterproof Stretch MaterialThese chair cover covers are made of high-quality stretchy and strong spandex fabric (92% polyester and 8% spandex), the fabric is added with waterproof material, which can better meet your needs.Size SelectionAfter researching for many years of our professional team, and the wide range of investigation to chair size in all applications, we draw a conclusion that our waterproof spandex chair cover is suitable for back height from 17 to 24, back width from 14 to 20,back thickness within 4; Seat length from 14 to 20 as well as the width, and the thickness is also within 4. Many banquet chairs are fit in. Please refer to the size chart before rchasing.Protection & DecorationThese universal fit chair covers are waterproof and wrinkle-resistant, making them perfect for indoor and outdoor activities. They protect your chair from dirt, dust and scratches, and beautify your event design by adding color or texture to your chair.Cleaning TipsIn order to ensure the reusability of the product, these spandex chair covers can be washed in cold water, and can be washed by hand or machine. Can not be dried, you can t it in the sun to dry. You can also iron if desired, but not bleach.High-quality after-sales serviceIf you have any questions about our products, we will provide you with 30-day after-sales service, and we will reply within 51 hours to provide you with a pleasant shopping experience.