This semi-stiff, nylon fiber bristle brush is perfect for scrubbing the rounded surfaces of flasks, beakers, vases and other glassware. The stainless steel, twisted handle is semi-flexible, allowing you to modify the handle shape as needed. Looped end for easy hanging. Designed for professional science laboratories but is perfect for a variety of applications in the home or garage. Brush measures 15" in total length. The bristle section measures 6.25" in length and is 1.5" in diameter. Handle measures 8.75" long.