Custom Zipper Brave Wolf Pillowcase Covers Standard Size 20x30 Two Sides High quality pillowcase pillowslips,made of 50% cotton and 50% polyester Custom your own pillow case by sending us your pictures/photos,image not small than 1000 pixel The pillow cover has an invisible zipper closure. Does not include the pillow core Custom designed pillowcase ,add a touch of elegance to your home decor with decorative throw pillows. Durable and environmentally friendly Material. Safe to machine wash