KONG Shieldz Tropics toys are covered with an airtight, ultra-strong coating designed to last. The outside of this fun frog protects the heavily padded inside, giving dogs a captivatingly thick toy that satisfies their natural chewing instinct. The whistle in the toy keeps puppies wanting to play and extends the fun. These sturdy partners clean up easily, making them perfect for indoor or outdoor play. Plus, because they float, they encourage water play.