Fully graduated cone made of styrene-acrylonitrile. It features a low density plug which makes it easy to withdraw sediment. Markings are incremented as follows: 0 to 1 ml by 0.1 ml, 1 to 10 ml by 0.5 ml, 10 to 40 ml by 1.0 ml, 40 to 100 ml by 2 ml, and markings at 250, 500, and 1000 ml.