beaker, flask, cylinder set, 3.3 boro. glass - 9 pieces - beaker set, flask set, and graduated cylinder set, karter scientific 233n2 karter scientific a combined family grouping of three popular 3 piece sets supplied by karter scientific. including griffin low form, glass beaker set - 3 sizes - 50ml, 100ml, 250ml, glass erlenmeyer flask set - 3 sizes - 50, 150 and 250ml, and glass graduated cylinder 3 piece set 10, 50 & 100ml. all products are manufactured from 3.3 borosilicate glass.