Sold by piece (not a set) - Material and feel: The sofa cover is made of cotton fabric with a polyester filling, soft and smooth to the touch and not easy to accumulate hair or pet hair. - Fit and sizing guidance: Please refer to the measurement guide and measure your furniture before ordering. It is sold by piece (not in a set) and is suitable for your adjustable sectional sofa and couch. - How to choose the right size: - Width options: 28" width for sofa width equal to or less than 24", 36" width for sofa width between 24" and 32", 43" width for sofa width over 32". - Length: add an extra 4"–8" to allow tucking in the sides; width and length should be longer rather than shorter. - Example: If your sofa is 30" x 58", order 36" x 63" to fit. - Armrest and back size: choose 28" x 28" or 36" x 36". - Functions and applications: This soft furniture cover protects your sofa, couch, loveseat, recliner and chairs from spills, stains and pets. Suitable for all seasons and can be used not only as a sofa cover but also as a playmat, bedroom rug, floor mat, window sill mat, and more. - Secure fit: Heavy quilted sofa cover with non-slip backing using a silicone rubber design. It is more securely fixed in place than ordinary sofa covers that rely on straps. Please note that minor adjustments may be required if the dog is noisy. - Maintenance and care: These modular sofa covers are suitable for fabric and leather furniture and are easy to install with no extra accessories required. Easy to clean: machine wash cold and tumble dry cold; do not bleach. Wash as good as new.