Natural rubber for dogs has a textured surface and a thick rubber core for chewers. There are no indestructible dog chew toys, but this durable dog toys last for long-term use. The hidden tennis ball inside of the rubber chew toy can make squeak sounds when squeeze to attract your dog to play with longer. This tough dog toys increase dog's chewing power and interaction with you, help them train their teeth, improve their intelligence, and reduce boredom to damage to furniture or shoes. 100% Non-toxic natural rubber dog chew toy is very safe for dogs to interactive. Easy-Clean: Just rinse with warm water and pat dry. Pet toys should always be inspected regularly as any rips or tears can injure your pet. Damaged product should be taken away from your pet and disposed of immediately. Ensure the toy you select is appropriately sized for your dog.