Himalayan Rock salt blocks are mined from ancient deposits in the Himalayan Mountains pure and full of minerals. With the Himalayan Horse Rock Salt Lick, you receive 200 million years of accumulated energy plus all the natural minerals needed by your horse for a balanced intake of iron, potassium and magnesium, which are all vital for maintaining health. The distinctive rose pink color comes from the salts' high mineral content. HH Salt Lick Rocks are literally 'rock hard', which means that horses are unable to bite chunks off the block. These licks are also much more weather resistant and will not dissolve if left out in the rain, which means they can be safely left outside in the field. The Salt Lick on a rope- the rock have a hole through the center and come with rope tie that makes it easy to hang the product in your stable. This nutritious product is also a great way for your horse to relieve boredom.