This throw pillow covers is made of 10% linen and 90% polyester,black print,solid and durable. Also friendly to kids and pets. Suitable for Cottage decor,outdoor chair,sofa and bedroom. The pillowcases size is 12*48 inch. The insert was made of 100% polyester. Invisible zipper sewed on the edge for an elegant look. Works smoothly and allows easy insertion and removal of pillow inserts.Good quality zipper,make the cushion cases work for a long time. The throw pillow covers is only one side has pattern,goes well with all kinds of home decoration,can be used for indoor sofa,couch,bedroom,outdoor chair. Machine wash on cold, tumble dry on low. All fabric edges are sewn with zigzag over lock stitch to prevent fray and ensure durability.It can not split sewing when put in the inserts.