Natural Material: This dog chew toy is made of 100% natural rubber. Excellent elasticity and durability. Made with rubber level as childrens products, non-toxic and safe, so you can safely chew your dog. (Educational Toy) Equipped with a voice speaker, so when you push or chew it, it will hear the sound from your stomach and attract the interest of your dog. This is an alligator type that dogs love. Throw, pull, bite and relieve stress. Also, it does not use materials other than rubber, so it is more sturdy and durable than regular dog chewing toys. Perfect for large dogs with strong power. It will be hard to break. Cleaning Teeth: The material is soft and will not hurt your dogs teeth. The surface has a nib that helps massage gums and remove plaque and is very suitable for cleaning teeth. Easy to Clean: Hand wash in cold water or dishwasher.