Agri- ProSemi AutomaticPlasticRepeating1 mL incrementsApplies a dosage of 1-5 mL468450 This 50 mL Plastic Semi-Automatic Repeater by NJ Phillips fills through the tip. It is cost effective, reliable and durable to save you money. Easy choice of 5 fixed dose settings and the built-in needle magazine saves you time. The ergonomic fingertip action reduces hand strain. Optional polypropylene barrel for increased chemical resistance.