Box Of 12 For Use On Cattle Administer With Balling Gun Product Use: For Oral Administration To Ruminants As An Aid In The Tratment Of Digestive Disturbances Requiring An Antacid And Mild Laxative Ingredients: Each Bolus Contains Magnesium Oxide - 276 Grs Search_Phrases: Farm Animal,Farm,Animal,Remedies,Aids,Vaccine,Durvet Inc,Rumen Bolus 50 Box