Tight Fit:(Black) This set of 2 chair covers is designed to fit chairs with a back height of 17.7"-25.6", a seat length of 15"-17.7", and a seat width of 15"-17.7". Soft and Comfortable: The chair cover is made of durable and soft 85% polyester and 15% spandex, which is super soft, breathable and wrinkle resistant. The highly stretchable and elastic bottom structure makes the chair seat cover perfectly fit most sizes of dining chairs, easy to put on and take off, giving your chair a new look. Machine washable for easy care. Dining chair seat covers not only protect your sofa from dirt, wear and tear, but also are the perfect decoration to provide you with a new living environment to enjoy your life. Please check your chair size and the cover size before purchasing.