10-pack Straw Cleaning Set, Bottle Tube Cleaning Brush 1. Made of high-quality, high-density nylon yarn, which has good elasticity and does not shed. 2. High-quality stainless steel wire is wound, does not rust, brushing is flexible and not easily deformed 3. The bristles are spiral-shaped and are in good contact with the wall of the straw tube. Water pipes, glass tubes, plastic hoses and straws can be scrubbed more deeply and cleanly. Scope of application: Suitable for cleaning all kinds of milk bottles and water bottles with built-in straws! Clean all kinds of glass tubes, water pipes and plastic hoses for aquariums! Cleaning electronic products, How to use: 1. First put the straw and straw in the lotion (water with cleaning liquid) and gently rub the straw back and forth. 2. Pass the straw through the straw and then rotate it. The bristles will remove the parts that are not easy to wash. 3. After washing, rinse the straw and hang it to dry. 4. Do not apply it at high temperatures to avoid damaging the bristles. Color: black Material: nylon and stainless steel. Size: 20 cm. Package Contents: 1 set of cleaning brushes (10 pieces)