1.Neutral glasss 2.easy to clean 3.high transparency 4.The scale is precise Our Measuring Cylinders are produced according to European standard. boro 3.3 1601 MEASURING CYLINDER with spout and round base graduated 5ml,10ml,25ml,50ml,100ml,250ml,500ml,1000ml,2000ml. 1603 MEASURING CYLINDER with graduations and ground with glass stopper 10ml, 25ml,50ml,100ml,250ml,500ml,1000ml.