The KONG Wiggi Tumble ball doubles the engagement with an internal tumbling squeaky ball adding action and sound that entices chasing instincts. The natural latex material creates a flexible toy that is great for fetching fun. The easy grip openings are ideal for tugging and fetching interactive play. Easy on teeth and gums this toy also features a wipeable material that is easy to clean. This is NOT a chew toy and is NOT indestructible!