A blend of direct fed microbial support healthy digestive processes. Use before and after deworming or antibiotics. Components are freeze dried and stabilized does not need to be refrigerated. Use prior to shipments or long hauls. An average size horse uses 10 grams per day. Size is 1 Pound. Dimensions are 5.25 X 5.25 X 4.125 Calcium Carbonate, Fructooligosaccharide, Aspergillus Oryzae Fermentation Extract, Dried Fermentation, Lacto. Acidophilus, Lacto. Plantarum, Lacto. Casei, Enterococcus Faecium, Bifidobaterium Therophilum And Bifidobaterium Longum. UPC Code = 810611002719