Turtle Bone is a natural floating source of calcium for all species of aquatic and terrestrial turtles and tortoises. Turtle Bone provides habitat enrichment and supplementary calcium on an as needed basis, and the rough edible surface helps prevent overgrown beaks as well as curb unwanted chewing behavior. Ingredients: Cuttlebone Benefits: Helps prevent overgrown beaks as well as curb unwanted chewing behavior.Provides habitat enrichment and supplementary calcium on an “as needed” basis