Features 1、The brush uses high‑density nylon wire, which has good elasticity and does not shed hair. 2、Suitable for cleaning baby bottles, water bottles, aquarium glass tubes, water pipes, plastic hoses, straws, etc. 3、Spiral‑shaped brush design, in good contact with the pipe wall of the straw, making it easy to clean. 4、High‑quality stainless steel wire wound, does not rust, and the handle is elastic and not easily deformed. 5、With 10 brushes of different diameters, it can meet the cleaning needs of objects of different sizes. Specifications Item Type: Cleaning Brush Material: Stainless Steel + Nylon Weight: Approx. 30g / 1.1oz Brush Length: Approx. 20cm / 7.9in Diameter: Approx. 2mm / 0.08in, 3mm / 0.12in, 4mm / 0.16in, 5mm / 0.20in, 6mm / 0.24in, 8mm / 0.31in, 12mm / 0.47in, 16mm / 0.63in, 20mm / 0.79in, 24mm / 0.94in Scope of Application: Suitable for cleaning all kinds of milk bottles and water bottles built-in straws, all kinds of aquarium glass tubes, water pipes, plastic hoses, electronic products cleaning, etc. How to Use: 1. Put the straw and the straw brush in the lotion (water with cleaning liquid), and gently use the straw brush to scrub back and forth. 2. Pass brush head through the straw, and then turn the brush, the bristles will wash away the parts that are not easy to wash. 3. After washing, please rinse the straw brush and hanging it to dry. 4. Please do not apply at high temperature to avoid damage to the brush. Package List 10 x Cleaning Brush