HIGH QUALITY MATERIAL: Made with spandex premium fabric that is softer, more flexible and easy to stretch. Our armrest covers are suited for more than 90% of fabric chair armrests. Please Note: Our cover is more suitable on fabric sofas. MEASUREMENT: 21cm long, 18cm wide, and 3cm high. One-size-fits-most, and comes with a pair of armrests in a package. Please refer to the product size before purchase. FUNCTION: Give your armrests a brand new look while protecting them from daily wear and tear, stains, and scratches. Extend the life of your armrest or fix a broken and worn out armrest quickly and effortlessly. A must-have for homes with children and pets. Easy installation and removal, machine washable. TIPS: The installation process is simple and easy to operate. To prevent the product from moving or slipping off, we also put a box invisible design twist pins in the package. The pins can be easily inserted into the sofa without tearing or damaging.