United Scientific™ Glass Stirring Rods W/ Rubber Policeman, 5" Long, 3mm Diameter, Pk/12

Glass Stirring Rods W/ Rubber Policeman, 5" Long, 3Mm Diameter, Pk/12
Rubber policeman attached to glass rod facilitates scraping and mixing.stirring rods are made of soft flint glass with both ends fire polished and rounded. Policemen are made of natural rubber, pre-assembled