Our sofa covers are universal suitable to sofa size between: (1-seat) Fit 35-55 inches （90-130 cm） Chair (2-seat) Fit 55-74 inches ( (140cm-190cm) Loveseat (3-seat) Fit 74-90 inches (190-230cm) sofa (4-seat) Fit 90-118 inches (230-300cm) 4 seater long sofa And Please measure as shown, leaving 4"-8" edges to stuffed sofa Sit Cushion into the sofa to fix them. L -Shaped Sofa Cover =AA sofa cover+BB sofa cover. Please Ensure that and Measure your sofas size Before Purchasing: See Measuring Guide in Photos. And Please measure as shown, leaving 4"-8" edges to stuffed sofa Sit Cushion into the sofa to fix them. M-style 2+2Seater： For sofa length(AA part)betwwen 55 to 74 inch(140-190cm) For sofa length(BB part)betwwen 55 to 74 inch(140-190cm) L-style 2+3 Seater： For sofa length(AA part)betwwen 55 to 74 inch(140-190cm) For sofa length(BB part)betwwen 74 to 90 inch(190-230cm) L-style 3+3 Seater For sofa length(AA part)betwwen 74 to 90 inch(190-230cm) For sofa length(BB part)betwwen 90 to 118 inch(190-230cm) L-style 4+3 Seater For sofa length(AA part)betwwen 74 to 90 inch(140-190cm) For sofa length(BB part)betwwen 74 to 90 inch(190-230cm) How to install Steps 1: Position the slipcover over the sofa with the label at the back Steps 2: Pull the fabric evenly over the sofa, and push white sponge cylinders in spaces between the cushions, shaping the cover to the sofa and keeping fabric tight Steps 3: Tilt the sofa up and find elastic ties. Pull the front and back ties together tightly and tie. Pull the side ties together and tightly Steps 4: Put the sofa down and pll cover tight, pulling any excess fabric to the back Steps 5: Enjoy your newly coverd sofa!