Sold by PIECE not SET. This sofa cover is made of linen fabric, soft and smooth to the touch and not easy to collect hair or pet fur. Please refer to the measuring guide and measure your furniture prior to order. Sold by PIECE, not by SET, suitable for adjustable sectional sofas and couches. Size guidance - Width options: 28" width for sofa widths equal to or less than 24"; 36" width for sofa widths between 24" and 32"; 43" width for sofa widths above 32". - Length: add 4" to 8" to allow extra length for tucking the sides; longer is better than shorter. - Example: if your sofa measures 30" x 58", order 36" x 63" to fit. - Armrest and backrest: recommended sizes are 28" x 28" or 36" x 36". Function and protection - A solid color linen slipcover that protects couches, sofas, loveseats, recliners and chairs from spills, stains and pet messes. - Suitable for all seasons; not only a sofa cover, but can also be used as a play mat, bedroom rug, floor pad, or window bench mat. - Keeps your furniture looking newer with minimal maintenance. Non-slip design and fit - Non-slip backing with a silicone rubber design to stay in place more effectively than typical strap-backed covers. - Minor adjustments may be needed with very active pets or high movement. Compatibility and care - Works well on both fabric and leather furniture and is easy to set up with no additional accessories needed. - Easy to clean: machine wash cold and dry on a cool setting; do not bleach. - Regular use helps protect furniture from everyday wear and tear. Usage scenarios - Everyday protection: ideal for homes with kids or pets to guard against spills, stains and hair on sofas, loveseats or chairs. - Seasonal and flexible living: switch covers to refresh room decor or to accommodate guests without replacement cushions. - Practical alternatives: use as a play mat for children, a bedroom rug, a floor pad, or a window bench mat to maximize space and functionality.