Put it in their pasture and they will come. Cattle， that is. The Agrimaster 37% Range Block supplies cattle with the proteins， minerals and vitamins， with no measuring， or worrying about dosage on your part. You can put out several blocks in a pasture to encourage cattle to graze in different areas， making your pasture last longer. Each block contains easily digested proteins for optimal health of your herd， which translates to more money in your pocket. Pick up an Agrimaster 37% Range Block and give your cattle what they crave.FeaturesFormulated for beef and dairy cattle and goats on pasture or forage diets37% ProteinFortified with key vitamins and trace mineralsContains added copper (do not feed to sheep)Maximum self - feeding convenienceSpecificationsProtein (min):37%Vitamin A (min) - 30，000 IU/lbVitamin D (min) - 3，000 IU / lbSee product label for additional product specifications and directions for useWeight: 33-1/3 lbQuantity: 1 Block