Sturdy Durable - Made of BPA-free natural rubber, the toy is non-toxic to ensure dogs can chew safely. The strongest solid tire shape has been carefully designed to attract dogs' attention. It is durable and almost indestructible, making it very suitable for aggressive chewers. Dental Massage - The solid tire outer ring can withstand tough chewing. With multiple grooves and cylindrical protrusions on the surface, a continuous chewing massage is given and can strengthen the jaw, cleaning teeth and reducing tartar, dog dental problems and saving money. Hollow Design - Fill the toy with food or snacks when the dog is playing, allowing the dog to eat while playing to add more fun. The tire groove and surface grain texture are suitable for peanut butter, nutrient cream, peanut butter or other moist foods and prevent it from slipping, allowing your dog to concentrate on licking, avoid biting, damage furniture. Instinctive Needs - Healthy play is essential for a dog's physical and mental development. This chew toy meets dog's instinctive needs and provides mental stimulation, relieves dog's anxiety, kills boring time, reduces destructive chewing, digging, barking and maintains good posture. Guaranteed Quality - Our heavy duty chew toys have been tested and approved by Bulldogs, German Shepherds, Medium Dogs, Labrador Retrievers, Golden Retrievers and many other large endurance dogs. No dog toy is truly indestructible, but our model comes very close and it's normal for it to start to wear out after long-term use. If you have any questions about our chew toys, please contact us in time.