STRETCH FABRIC: 92% polyester and 8% lasthane make our sofa covers more stretchable and durable, ensuring both good function and comfort. There are also various adorable colors available for your choice to decorate your sofa. . PROPER FIT: You measure the length between one armrest and the other armrest to choose the right size sofa covers for your sofa. The recommended size is as follows: (approx.) 1-seater sofa cover fits sofa length 70-125cm/27-50inch, 2-seater fits sofa length 125-165cm/50-65inch, 3-seater fits sofa length 165-205cm/65 -80 inches, 4 seats for a sofa length 205-250 cm / 80-98 inches. . NON-SLIP DESIGN: Our sofa cover can cover the back of your sofa, providing full protection. There are non-slip foam cylinders in the package, which can be stuffed into the sofa gap to keep the slipcovers in place. Also, 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, installing the sofa cover will not take you long. . NOTE: 1, the product is only a sofa cover, not including sofas or pillow covers. 2, Due to the change of light and photography problem, the colors may vary slightly from the picture and the product, but we try our best to make our items consistent with the photos.3, Machine washable within 30 degrees Celsius. .