1. These small bottle brushes for cleaning narrow neck are specially designed for a multitude of home uses with a comprehensive selection of sizes.They are small bottle cleaning brushes that are longer than other brand's products for water bottle cleaning with stiffer bristles at the end of the handles and stiffer handles for efficient cleaning. 2. The thin ones of the test tube cleaning brush set have a soft tip to prevent scratching delicate surfaces.They can bend and shove into small pipes and hoses that have curved edges to clean inside.They are also ideal small cleaning brushes for small spaces. 3. This set of reusable straw cleaning brushes are mainly made of stainless steel and they are rustproof and sturdy for a long term use with a handy loop to hold them together.They can be used as yeti straw cleaner brush,nipple brushes for bottles,test tube brushes for cleaning,water bottle straw cleaner brush and so on. 4. All in all,the test tube cleaner brush to clean straws is widely used at home not only for cleaning but also for unclogging those sink plug holes in bathroom and kitchen. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia