<b>Each pillow cover weights 4oz. Heavy duty fabric. 18X18 large size is perfect for 18X18 pillow insert and OK for 20X20 inserts.<br> Vivid colors and cute patterns is definitely a good decor for your home and patio couch sofa seats.<br> You can return them easily if you are not satisfied. We always try our best to provide the best products and service for our customers.