UNIQUE DESIGN: The brush is spiral,so it has good contact with the pipe wall, and the bristles are not easy to fall off. They can bend and shove into small pipes and hoses that have curved edges to clean inside. The stainless steel rod is durable and flexible for deep cleaning PREMIUM MATERIAL: The straw cleaning brush is made of stainless steel and high density nylon bristles, soft and flexible, rustproof and sturdy, and will not scratch the straw. They are for a long term use with a handy loop to hold them together EFFICIENT CLEANING: Small and soft cleaning brush set clean those finer detail, narrow spaces that are inaccessible to hands. The flexible and bendable stainless steel body allows for deep cleaning of every corner of the stain EASY TO USE: The flexible and lightweight nylon tube brush is very convenient to use. Easy to get into hard to reach spaces, and no more remaining dust in your life, saving your time and efforts. Perfect for use in the home and kitchen WIDE APPLICATION: This cleaning brush is not only suitable for cleaning glass straws, metal straws, bottles, water cups, test tubes, but also suitable for coffee machines, kettle tea spouts, keyboards and more. All in all, these small tube brush are widely used at home