Polypropylene is lightweight and durable for indoor or outdoor gatherings. Wheat Straw Polypropylene is injected with natural flecks of post harvested wheat straw. All are safe for microwave and dishwasher use. Set includes 4 Dinner Plates, 4 Salad Plates & 4 Bowls This set ships in a brown corrugate box and the items are not individually UPC coded.