STRETCHY FABRIC: 92% polyester and 8% spandex make our sofa covers more stretchy and durable, ensuring both good function and comfort. There are also various adorable colors available for your choice to decorate your sofa. GOOD FIT: You measure the length from one armrest to the other armrest to choose the right size of sofa covers for your sofa. The recommended size is: (approx.) 1 seater sofa cover fits sofa length 70-125cm/27-50inch, 2 seater sofa cover fits sofa length 125-165cm/50-65inch, 3 seater sofa cover fits sofa length 165-205cm/65-80inch, 4 seater sofa cover fits sofa length 205-250cm/80-98inch. NON-SLIP DESIGN: Our sofa cover can cover the back of your sofa, providing all-round protection. There are anti-slip foam cylinders in the package, which can be stuffed into the gap of the sofa to make the covers stay in their place. Besides, the straps of the sofa covers could be tied under the bottom of the sofa to prevent the cover from moving. EASY TO INSTALL AND CLEAN: The unique fabric makes it quick and easy to remove pet hair. And the stretch sofa covers can be machine washed, which is simple and convenient. According to the installation instructions, it won't take you long to install the sofa cover. NOTE: 1, The product is only a sofa cover, not including sofas or pillow covers. 2, Due to the change of light and the problem of photography, the colors may differ slightly from the picture and the product, but we try our best to make our items consistent with the photos. 3, Machine washable below 30 degrees Celsius.