Excellent for cleaning cylinders or large tubes with inside diameters from 38 to 64 mm For effective, safe cleaning of wide mouth glassware such as jars, beakers, etc. Stiff, black bristles 127 mm long x 64 mm diameter, with fan-shaped tufted end, on heavy galvanized iron wire. Overall…

Specifically designed to thoroughly clean conical laboratory glassware Of black bristles combined with stiff fibers, shaped to fit into cone tip Bristle part 9” long, 4” top diameter, 1 1/2” bottom diameter, tip 3” long; length including handle: 30”