A precision instrument designed to fit comfortably in the palm of your hand and minimize hand fatigue. Its well-built, durable construction prolongs the life of this accurate instrument. Unlike most injectors, the plunger moves vertically with a sight glass at the tip and medicant exit through a one-way valve exit port through the luer lock tip Adjustable dosages (1-5ml) Easy to clean and maintain Simple assembly requiring no special tools In the field, it is accurate, easy to use, and rugged enough to take a beating Comes complete with tubing and Large Draw-off Precision instrument designed to minimize operator fatigue, operated with minimum effort. Maintenance is simple, as the instrment has few replacement parts. Highly accurate, administering a precise dose of medicine. High quality materials of machined and cast metal components with plastic molded body.