4 pack of Rite Farm Products 3 ounce salt licks and 1 hanger. Hanger fits all cages and can be attached to ceiling walls or floor to provide your pet with free choice salt and essential minerals. Salt and mineral licks are safe natural and are great treats for animals. They help supply the natural craving for salt and supply essential minerals. Great for Rabbits Chinchillas Guinea Pigs Hamsters Minks and alike animals. Contains salt and the following minerals: Manganese Iron Magnesium Sulfur Copper Cobalt Zinc & Iodine. Salt licks are 2 inches long and 1 inch wide. Hanger is 2.75 inches long and 1.625 inches wide.