Have you already switched over to glass drinking straws, or are you thinking about doing so? The straws come in a set of three. Each set contains a green, a clear and a pink glass straw. Glass straws are much more environment friendly than plastic straws and they can be used over and over again. Use them when drinking a glass of soda, or when you are inviting friends over for some cocktails. Then they not only act as drinking straws but also as a cocktail stirrer. This 3-piece set of straws is also a nice gift for an environmentally conscious friend.