The tiny flavour cells hold just enough spread to entertain your dog but not so much that they're getting a lot of calories. The Barkbone are hefty in size and curved. Easier for your dog to pick up and hold when chewing. Even though it works great with all kinds of spreads, dogs love it on its own too! The Minty Flavour it Barkbone is infused with human-grade mint flavouring. , , You can actually smell the goodness of the bone right through the package! The result is a double-yummy and drool-worthy bone your dog will love even without any spread! Dishwasher safe You can even add a different spreadable treat on each side to up the flavours!