Our Rack Mineral Forage Blocks are primarily forage based similar to fiber based browse found in the wild. Each block contains 2 lbs. of a complete balanced diet and Contain generous portions of Calcium & Phosphorus to Help promote Large Racks! Our Rack Mineral forage Blocks are designed to meet the Nutritional daily requirements of all growth stages of deer and most important to help keep the deer's Rumen Functioning properly! The high fiber content helps deer ruminate for better gut health. Our all Natural Deer Blocks will prevent acidosis in deer caused by an overload of corn and grain type feed! So having our Deer Block in your Bait , Feeder and Mineral site areas will help in the promotion of all around Health of your herd!