If you're looking for a tougher more durable treat for your pup, Anco's Bully Paddywack could just be what you need. As it's a tougher treat it is long-lasting and will occupy your dog for a long time. Works great as a 'natural toothbrush' as it aids in the removal of tartar from their teeth and high in protein which helps generate energy and build/maintain muscles, also carrying a delicious scent/taste that your dog won't be able to resist. Great for all dogs but especially those strong chewers that tend to require more durable treats.
