Manu Mineral Blocks contain the same minerals found in the natural manu River mineral deposits. The wild birds flock to ingest the Manu River's natural rich clay. Now your pet bird can benefit from these same minerals.
 
INGREDIENTS:
calcium sulfate, iron oxide, sodium chloride, magnesium oxide, potassium chloride, dicalcium phosphate, zinc sulfate, copper sulfate, ferrous sulfate and manganese oxide.