Security & Non-Toxic: Made of extra strong natural rubber that is durable, bite resistant and most important of all, safety. Suitable for medium to large dogs to chew and play. Dental care:The uneven and rough surface of the balls will thoroughly clean your doggies teeth. Help your dog have strong and beautiful teeth. Easy to use & Clean: With the puzzle design, our food balls have an opening large enough for you to put rewarding snacks in. Refresh the toy by washing it with warm water, as convenient as possible. Best gift for pets: Toy balls can meet dogs’ needs to grind their teeth. Prevent dogs from biting furniture or hurting their teeth, etc. They can be great as food dispensers, IQ trainers and interactive toys.