About this item MULTIPLE SIZES - With this set of 9 straws, you will get three sizes of brushes: 200*6mm; 250*10mm; 300*12mm. great for cleaning glasses, straw cups, bottles and straws and other straws. Easy to use - just insert it into the tube, spin, remove and clean. Its bristles are long, soft and durable and can be used to clean your pipes of all sizes without scratching the inside of the straw. Plus, it won't leave as much lint in your pipe as a chenille pipe cleaner that you have to struggle to get out. DURABLE AND VERSATILE - Use our durable straw brush which is very flexible but won't break easily, which is much better than some inferior and flimsy straw brushes. Also, this brush can be used to clean bongs, narrow pipes, hokas, coffee pots, sink drains, hummingbird feeders, marijuana bongs and other hard-to-reach corners. How it's made - These straw cleaning brushes are made of stainless steel, bringing you both durability and versatility. The bristles of the brush are made of nylon, which is both corrosion resistant and easy to clean. Operates on any surface or at any depth.