For use on bottles, jars, cylinders, etc. Black nylon bristle with tufted end and twisted galvanized iron handle with loop The 305 mm brush is also for 50 ml round bottom centrifuge tubes

Of white nylon bristle with galvanized iron wire handle Convenient for cleaning the necks of dairy test bottles Bristled portion 3” x 1/2” diameter; length 12”

For use on test tubes, centrifuge tubes, small jars, cylinders, etc. Of white nylon bristle with radial tufted end and twisted wire handle with loop Package contains 6 brushes

For volumetric flasks, with bristle part 1 1/2” diameter and plastic handle Flexibility of curved spring portion to which bristles are attached enables brush to reach all parts of flask

For safe, thorough cleaning of test tubes and narrow mouth glassware Of white animal bristle with tufted end, on sturdy galvanized iron wire 1927G60 brush is suitable for test tubes 12 to 18 mm o.d.; 1927K15 brush is suitable for test tubes 18 to 25 mm o.d.

For use in cleaning beakers, jars and cylinders Four rows of black nylon monofilament bristles, twisted in wire and with wooden handle Bristle length portion approximately 6"; maximum diameter 3 1/4"; total length 15 3/4".