... any size, any material is acceptable. Lovely Monkey Kid's Lunch Box (1). Material: Durable 600 denier plus polyester ... handle(3). Zipper closure around 3 sides of bag allowing easy opening, filling, and usage(4). ... items secure -Zipper closure around 3 sides of bag allowing easy opening, filling, and usage -Insulated ... time).PACKING METHOD :One pc per opp bag ,and inner cartons. several inner carton with ...