Intended for use by medium and large birds. Cosmic Crunch toys are made of 100% pulverized sea shells which provide calcium as birds chew. These toys last longer than most because the cluster material is so hard that birds are only “shaving away” at the material instead of actually chewing it. Also, most toys in this line have glow-in-the-dark beads – with an afterglow effect lasting 20 minutes, and all have quick-links for easy cage attachment. Toys are finished with 100% safe FD&C colors. Ingredients: ground limestone, ground seashell, wheat flour, tapioca flour, food coloring: FDC Blue No. 1, Red No. 3 and Yellow No. 5. Guaranteed analysis: Calcium - 20.0%, Phosphorus (min) - 0.05% and Salt (min) - 0.20%.