" Product size 18"L x 18"W Package Included: Set of 4 pillowcases, no pillow core or filling. Pattern only on the front, no printing on the back. (These 4 pillowcases help you quickly change your home decor. Also a super cute gift for family and friends.) Size & Material: This pillowcase fits a 18x18 inch pillow core, Please note: All of our pillowcases are made to ensure a tight fit. Each listing size refers to the pillow core size, not the pillowcase size. To ensure a good fit, we make all pillowcases slightly smaller than the pillow core size (about 0.5 inches smaller). Made of 100% polyester, soft and skin-friendly, no fading or fraying, can be used outdoors. Easy to Wear: The color-coordinated invisible zipper closure brings an elegant look, and it is very easy to tuck the pillow/filling into the pillowcase. Washing Tips: Machine wash separately in cold water, gentle cycle, do not bleach. " Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin