Why our graduated measuring Cylinder better than others?

1 heavy duty reusable single metric high quality glass graduated cylinder for laboratory test. These graduated cylinders are borosilicate glass (Pyrex is too), so technically
2 heavy duty round stem, readable with single metric scale, clear and accurate calibration, orange graduation with the main point Ring graduations extra brush help us to clean the measuring cylinder easily
4 because the duty glass material and good packing, hardly damaged in transit. Quality assurance.