The Simcro STF Variable Injector features an award-winning design and durable construction of materials that are inert to virtually all actives and carriers. It offers extremely accurate (+/- 3%) repeating dose with infinitely variable dose adjustment. Use to administer vaccines, sera and many other injectable products, as well as anthelmintics (injectable and oral) and pour-ons. Needle nut attachment. Capacity Range: 0.2 mL to 2 mL Dose Graduations: 0.2 mL infinite Weight: 70 grams Maximum Length: 194 mm Designed for: Sheep, Cattle, Swine and Deer