Brand May Vary — Trace Mineral Salt Spool

Trace mineral salt spools are compressed cylinders of salt, specially formulated to provide an economical, efficient, and convenient means of Introducing necessary salt and/or trace minerals into a small animal's diet. Designed for small animals (Rabbits, Mink, Guinea Pigs, Chinchillas, Hamsters, Gerbils, Etc.) on a free-choice basis.