Bottles are usually made of glass or plastic and are used for liquids like aspirin, beer, and soda. Cans are always made of metal and contain foods like tuna and items like foot spray. Containers ending in -ar are usually jars which can hold items like cookies or jam. Tubes are used for pastes and creams like toothpaste, shaving cream, and face cream. Bags are for loose items like glue and ketchup while boxes and packs are used for grouped solid items like bandages, pills, tissues and cookies.