These are a great durable alternative to non-reusable plastic straws. These stainless steel metal drinking straws will help you and your family reduce your households non biodegradable plastic waste. These straws come in a variety of shapes and sizes providing you the perfect straw for any occasion. The set comes with 4 drinking straws, 2 smoothie straws, and 2 boba straws (larger width straws - often used for smoothies or bubble tea). The set also comes with a carrying bag so you can easily carry them with you out and about without ever getting your bag or pocket wet. The stainless steel it self is BPA-Free, Pthalate-Free, and made of food grade stainless steel making it perfectly safe. The straws are dishwasher-safe but if you're conserving dishwasher cycles, the straws come with two cleaning brushes. All in all this is a great alternative to plastic straws!