Length: 200mm; quantity: 10pcs; weight: 40g. These tube brushes are made with nylon bristles and stainless steel handles. They are flexible, do not shed bristles, resist rust, durable, and environmentally friendly. With a slim design, the cleaning brushes are very flexible and easy to use, and will not damage your items. All brushes have a loop on the handle, allowing them to be hung when not in use and helping prevent loss. Suitable for various types of bottles, such as water bottle spouts, test tubes, and glass bottles. Can also be used to clean espresso machines, hair dryers, and computer keyboards. Note: Measurements are manually taken, so please allow a 1-50mm variation. Due to differences in lighting and screen settings, slight color variations may occur. Actual product may vary slightly from images shown.