The best toy out there for dogs and puppies. The hard rubber makes this an excellent indestructible toy that will keep your doggy busy for hours trying to figure out its indestructible power. Not only will the dog try to figure this little toy out for hours , if you put treats inside the hole, the dog will spend days trying to get them out... leaving you with relaxation knowing your dog isn’t chewing up your house. Highly recommended for any puppy or dog parent but just remember... though the Kong mesmerizes and boggles dogs around the world, it should never replace puppy parents and old fashioned babysitting.