Great Stretch Material: The fabric sofa arm covers are made from 94% polyester and 6% spandex, which is soft, comfortable and stretchy. It is no longer a simple cover, but a part of sofa armrest. .Furniture Protector: The stretchy armchair arm covers renew and decorate your chair armrest. It can protect your chair arm from stain, scratch. It is great for home with children and pets. .Simple Design: Size is L: 17.9"-20.9" x W: 6.4"-7.9" x H: 7.9" -10.9", which is suitable for most armrest cover. The color is available with simple design, perfect for any style chair and sofa. .Easy to clean: The spandex polyester chair arm covers are simple to take off to clean. It is machine wash available and hand wash, which makes it convenient to care. No Bleach, Tumble Dry Low, No Ironing. .Anti-slip Designs: The thick fabric can increase the friction. The fabric couch can be secured with buttons. The set provides 10 twist pins for free to fix the armrest covers better. Invisible design, you could insert them in sofa arm without tearing the sofa. .