●HIGH QUALITY MATERIALS: each 18 inch pillow insert is firmly stuffed with soft filling polyester. It features a good balance of firm and soft. ●ENOUGH WAIST SUPPORT: these pillow forms stay full and don’t flatten when you lay on them and keep fluffy after long use. ●COVERING IS IMPORTANT TOO: we use clean and high thread 100% cotton fabric. It’s comfortable and safe to use. They will be your best choice as throw pillows for couch/ bed. ●MEASUREMENTS: this pillow insert 18 x 18 is recommended for sham/ pillow cover in the same size or smaller size, which will become a fluffy couch pillow. ●VACUUM PACKAGING: Vacuum sealed pillows will fluff in minutes after you open the packing and squeeze them.