Greenies Treat-Pak for Dogs, Original, 27-Ounce for $18.03 shipped after selecting Subscribe & Save to take an additional 15% off and receive free shipping.  Here is a screenshot for your reference.  You can cancel Subscribe & Save easily with a few quick clicks with no obligations after your order ships.  This dog treat helps control harmful plaque and tartar build-up. It contains natural sources of antioxidants and dietary fiber, and is ideal for dogs 25 to 50 pounds.