ASTM E288 Class A Volumetric Flask with Polypropylene Stopper, 1000mL, Single Graduation Mark, Borosilicate 3.3 Glass Included_Rod & Base this 2-pack of 30mL laboratory-grade

this 2-pack of 30mL laboratory-grade ethyl acetate dropper bottles supports entomology collection work

sized for student use at the bench in biology and histology courses

outfitting a bench with multiple support configurations

Graduations marked every 250ml

Plano-cylindrical concave lens at 50 by 50mm with -17 diopter power

ASTM E288 Class A Volumetric Flask with Polypropylene Stopper, 1000mL, Single Graduation Mark, Borosilicate 3.3 Glass Included_Rod & Base this 2-pack of 30mL laboratory-gradeASTM E288 Class A volumetric flask in borosilicate glass holds 1000mL with polypropylene stopper for precision volumetric measurement procedures.