Outdoor Pillow Covers 18x18 Waterproof Patio Throw Pillow Covers Cushions for Couch Garden Tent Park - Pack of 2 Pillow Covers  Zipper We have designed an hidden zipper in order to let pillow cover look more beautiful.  Characteristic Because of special fabric, they are waterproof pillow covers, suitable for outdoor places. SIZE 2 pieces of 18 x 18 inch throw pillow covers without inserts. Functions Suitable for tent,car,bed,sofa,seat,couch,bench,etc. Good decorations for garden, balcony, living room,bedroom,party,picnic,wedding,office,cafe,etc. Product Care Instructions Machine Wash, Do Not Bleach, Tumble Dry, Hand Wash