ALL GUARD SHEEP & LAMB BOLUS 5IN1 is a supplementary bolus that supplies sheep and lambs with cobalt, selenium and iodine. The boluses are designed to use a slow release leeching system that will slowly release the minerals over a six month period. They are ideal for supplementing sheep that require copper. These boluses can improve your flocks health, performance, vitality and reduce your concentrate use. They are perfect for the use to meet the new sheep scheme pre weaning mineral requirements.