12PK Bristle Cleaning Brushes with Fan-Shaped Ends, 9" - Twisted Stainless Steel Wire Handle - Ideal for 0.6" - 0.8" Diameter Tubes, Bottles, Flasks, Cylinders, Jars, Vases, Cups - Eisco Labs

Pack of 12 brushes. These medium soft, nylon fiber bristle brushes are perfect for scrubbing hard to reach, narrow spaces - test tubes, pipes, cups, bottles, jars, vases, laboratory glassware, measuring cylinders, beakers and more. Each brush features a fanned end that allows you to easily clean rounded surfaces and corners. Each brush has a stainless steel, twisted handle that is semi-flexible, allowing you to modify the shape as needed. Each handle has a looped end, for easy hanging. Designed for professional science laboratories but is perfect for a variety of applications in the home or garage.

Each brush measures 9" in total length, with the bristle section measuring 3.5" in length and 0.75" in diameter, and handle measuring 5.5". Fits inside items with diameters of 0.6" - 0.8".