High Cobalt Multi Trace Element Bolus for Ewes & Rams. Slow Release. Containing Cobalt, Iodine, Selenium & Zinc. Lasts for up to 6 months. Delivers all the essential Trace Elements crucial for growth & finishing. Trace Element Content Per Bolus IODINE SELENIUM COBALT ZINC 375mg 50mg 175mg 200mg Features / Benefits Long Acting and Highly Concentrated Containing Cobalt, Iodine, Selenium & Zinc High Iodine Slow Release APPLICATION GUIDELINES Lambs consuming 1.2Kg or more dry matter per day: 1 Bolus