1. Quality fabric: The mattress cover is woven using a density jacquard technique, resulting in a firmer and more flexible fabric structure that is wearresistant and less prone to pilling. 2. elasticity: Thanks to the elastic fabric, our sofa covers offer stretchability, allowing them to easily adapt to most sofa shapes. They are suitable for thick cushions ranging from 2 to 8 inches in height, ensuring a snug fit. These sofa covers are an way to refresh an old sofa and conceal imperfections. 3. 360° full coverage: Designed like a shower cap, the cover fits securely on your sofa, featuring elastic edges for enhanced protection and a better fit. The allaround 360° design safeguards your sofa from daily wear, spills, and stains, extending its lifespan. 4. Size reference: Backrest size M/Single bed: Width 1222 inches × Length 2431 inches × Height 28 inches Backrest size L/Double bed: Width 1222 inches × Length 3143 inches × Height 28 inches Large single bed: Width 2235 inches × Length 2235 inches × Height 28 inches Extralarge single bed: Width 2235 inches × Length 3949 inches × Height 28 inches Large double bed: Width 2235 inches × Length 4961 inches × Height 28 inches Triple bed: Width 2235 inches × Length 6173 inches × Height 28 inches