HARI MINERAL BLOCKS provide small birds with a rich source of calcium for strong bones and optimal growth. A variety of enticing morsels are embedded in the mineral blocks to encourage birds to scratch and chew on them to keep their beaks trimmed and healthy, and to provide additional enrichment.
Available in six delicious flavors and made entirely from natural ingredients. Plus, they're easy to attach to the cage bars using the included clip.
Features :
Oyster shells 
Rich source of calcium
Provides additional enrichment