Easy to Absorb: Diluted fish bones are easy to absorb and provide calcium supplement for hamsters, parrots, sea turtles and other small pets. Safety material: The material is safe to chew and play. Good toy for fun: let your pet feel the fun of sports with you.10-12CM Exercise your pet’s sensitivity: with this bone you can exercise and play with your pet’s sensitivity. For DIY: you can DIY and have a lot of fun with your baby pets.