Kong Real Peanut Butter Tube 5oz (Pack of 3) Pack of 3 Recommended for use with all KONG Classic and KONG Extreme dog toys All natural ingredients include roasted peanuts, sugar, hydrogenated vegetable oil to prevent separation and salt KONG Real Peanut Butter uses a formula that is virtually identical to peanut butter brands commonly found on grocery store shelves Simply insert the filling nozzle into the large hole of the KONG toy and squeeze