A tasty treat that provides the salt and trace minerals that small animals need to maintain good health. Formulated for rabbits, hamsters, guinea pigs, ferrets and chinchillas. Hanger snaps to the top or side of a wire hutch to provide free-choice feeding (animals will consume only what they need). Spool is 2 in Dia by 1 in thick. Metal wire hanger measures 1-1/2 in wide by 2-3/4 in high.