Neogen's prima-shot is engineered to be the most accurate repeater syringe in the animal health industry The patented design presents unique rotating pull knob to conveniently fill and engage the syringe Designed with the end user in mind The ergonomic handles are sure to make any job run smooth The prima-shot 50 ml repeater syringe adjusts from 0 5 ml to 5 ml in 0 5 ml increments and features an easy to grip dose adjuster dial to make dosing changes easy Features a heavy duty tritan barrel that is BPA-free highly chemical and scratch-resistant and has chemical compatibility that surpasses both polycarbonate and polypropylene