Agrimin 24-7 Copper Bolus CattleA sustained release bolus containing copper, intended for growing cattle and breeding cows on grass or forage based diets. Designed for situations where soil and forage copper levels are low or where known copper antagonists such as molybdenum, iron and sulphur are high. Each bolus contains 25gm of copper oxide rods, equivalent to 21. 25gm of copper. To be used with applicator AGR0205.