Usage Tips:[High Quality]- These tube brushes are Nylon bristle and stainless steel lever, with good elasticity, lint-free, never rust, and eco-friendly and durable. < p > [Easy to Install and Use]- Tube brushes can be quickly disassembled or installed with the key ring, there is capillary protection of the dispensing tip from scratching your instrument. < p > [Versatile]- The small cleaning brushes allow you to clean hard-to-reach places such as straws, bottoms of flasks, bottles, canteens, corners of coffee machines, spouts of teapots, kettles, etc. [Care]- The brushes can be washed by hand or directly in the dishwasher. [Care]- The brushes can be washed by hand or directly in the dishwasher. dishwasher safe. No bristle shedding thanks to strong and flexible nylon bristles, Resistant and strong brush bristles even with intensive use Individually removable brushes, Easy cleaning after use, Machine washable dishwasher safe. The tube brush lever is flexible, can clean the corners, can effectively remove stubborn dirt, soft handle, easy to operate, and it will not hurt the inside of the instrument to remove any dirt. Suitable for milk bottles, kettle spout, keyboard, test tubes, glass bottle and small nozzle, espresso machine, etc. Specifications: Material: 304 Stainless SteelandNylon Overall length of all brushes: 8 inches (21 cm) Brush Diameters: 2, 3, 4, 5, 6, 8, 12, 16, 20, and 24mm (1/16, 1/9, 1/6, 1/5, 1/4, 1/3, 1/2, 2/3, 3/4, and 1 in Package Includes: 10 x Cleaning Brush Note: The data is manual measurement, subject to please allow 1-68cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.