16 Paper, cardboard and plastic goods, namely, leaflets about nutrition, envelopes, business cards, paper tags, blank or partially printed labels, periodical publications in the nature of magazines about wildlife, children's books, brochures about diet and exercise, posters, photographs, calendars, diaries, computer game instruction user manuals, bookkeeping forms, art prints, diagrams for building computer circuits, plastic and paper bags for packing, and plastic bubble packs for wrapping or packaging