CottonPremium Quality- pillow covers are made of top grade Cotton Linen comfortable without odors or allergens retardants, no pilling and no stimulation to the skin, friendly for kids and petsHidden Zipper - The school throw pillow covers feature invisible zipper closure, that makes it easy to insert and replace and meanwhile keeps an elegant look;Package includes- The throw pillow set includes 4 pack square decorative throw pillows covers measures 18x18 inch/45x45cm. Package contains 4 pieces of throw pillow cases. INSERT ARE NOT INCLUDED; In order to present the best shape, a bigger size pillow insert is recommended.Plaid Design- The kids cushion covers make a vintage style decoration for your home.Multiple size and color selections are available for all your home needs, brillant for your fall home decorWash and Cares- Our throw pillowcases are fade resistant and stain resistant, machine wash in cold water, separately from other articles, delicate cycle,tumble dry low.