SIZE AND QUANTITY Set includes 4 straw cleaning brushes, perfect for cleaning straws, baby bottles, Starbucks cups, hummingbird feeders and more. QUALITY These long straw brushes are made of food grade stainless steel wire. The long, soft nylon bristles are durable and won't leave tons of lint in your pipe that you have to struggle to remove like chenille pipe cleaners. The end coating protects the glass straw or hose from scratching the inside. You can buy with confidence. VERSATILE USE These pipe cleaners can be used on a wide range of straws, pipes, hoses and all narrow mouth bottles made of all materials, as well as for cleaning narrow tubes, coffee pots, sink drains, hummingbird feeders and other hard to reach corners and holes. HOW TO USE These straw brush cleaners are very easy to use. Simply insert it into the pipe, rotate, remove and clean. It is reusable and it's best to use it with a bit of dishwashing liquid and warm water. If not in use, keep it in a dry place. You can also simply place it on the top rack of your dishwasher and hang to dry.