(Allflex) Allflex automatic self-filling syringes accurately deliver selected dose. Complete with tubing and draw off caps for use with 100, 250 and 500 ml bottles. Durable plastic design. Metal leur lock tip and removable plastic barrel for easy cleaning. Easy V-grip for high volume use. 2 ml adjusts from .25 ml to 2 ml; 5 ml adjusts from .5 ml to 5 ml.