The Simcro Premium Hi-Viscosity Injector is a complete delivery system designed for products with challenging discharge and refill conditions. Hi-flow valve system allows quick barrel refill times with minimal effort to operate even with Hi-Viscosity products. The selectable dose selection makes it very easy, and the ergonomic & textured non-slip finish handle designed for operator comfort. Calibration: 2.5ml - 12ml dosage in 0.5ml increments Kit Includes: * 3 x draw off tubes to fit 20mm, 27.5mm & 32mm diameter bottles * 2 x 16G needles 1.5 inch 1.6 x 13mm * Spare internal rubber & felt washers Species: Cattle