PetSafe’s Lickety Stik is a liquid pet treat packaged in a roller-top dispenser bottle. It comes in the following flavors: Savory Chicken, Braised Liver, Smoky Bacon, Beef Burger, Peanut Butter and Sharp Cheese. Sold in a 1.69-fluid-ounce bottle, dogs can lick the roller ball, which contains one calorie in every 10 licks, the company says.