Brief Description: Zoo Med Turtle Cuttle Bones 2-Pack is a natural calcium source for all types of aquatic turtles, box turtles, and tortoises. Rough, edible surface prevents overgrown mandibles (beaks). Helps curb unwanted chewing behavior. Zoo Med Turtle Cuttle Bone is extremely beneficial for juvenile and gravid female turtles and tortoises requiring additional calcium for shell growth and egg development. Simply place in turtle?s enclosure for beneficial calcium on an "as-needed" basis. Contains two Turtle Bone cuttlebones per package.