Polly's Manu Mineral Block contains the nine essential minerals that birds crave. It is an exact copy of the natural sources found on the banks of the Manu River in Peru, South America where birds flock to chew at. A great way to keep birds healthy. The Manu Mineral Block is 10cm in diameter and comes with an attachment for the cage.
Minerals include calcium, iron, manganese, potassium, zinc, cooper, magnesium, and phosphorus.