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: Suitable for armrests that are 18-21 inches long, 6.5-8 inches wide, and 8-11 inches 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. : 2PCS in ONE package If you are not satisfied with our products, please contact our customer service department and we will do our best to make it right. We are confident in our products quality. TIPS: The installation process is simple and easy to operate. We include 10 twist pins with invisible design for less movement and better armrest coverage. Pins can easily be inserted into your sofa without tears or damage.