All Sizes Pieces Per Carton: 48 Are you looking for a high quality product to protect your pillow from dirt and dust? These pillow envelopes are made from 100% cotton fabric that makes your head cooler, more breathable and comfortable. You can have peace of mind knowing that your pillow stays clean and protected with these envelopes! These envelope covers are easy to put on and remove and they cover the pillow from all sides. No more zipper scratches in the morning or broken zippers!