100% all-natural, salt licks are a great source of iron, potassium, and magnesium, which are all vital intake for maintaining your horse's health. This nutritious product is also a great way for your horse to relieve boredom. These salt lics are mined from ancient deposits in the Himalayan Mountains and contain 200 million years of accumulated energy. The distinctive rose pink color comes from the salt's high mineral content. Salt licks are literally "rock hard," which means that horses are unable to bite chunks off the block. These licks are also weather-resistant and can be safely left outside in the field.