EXTREMELY DURABLE - Arm & Hammer's Rock-N-Roller Stuffable Toy is extremely durable, made for the most powerful chompers KEEP YOUR DOG ENTERTAINED FOR HOURS - This toy will keep your dog entertained for hours, and helps redirect tough chewing into positive playing STUFF TREATS INSIDE - The center opening is ideal for putting treats inside, making this toy interactive for your pet YOUR SATISFACTION IS OUR PRIORITY - If you have any questions or feedback, please contact us via email 100% SAFE - Infused with baking soda, this chew toy is suitable for all dogs and puppies and is made with natural, non-toxic rubber