Starmark Dog Treat Ringer Bone Travel it will not work for

it will not work for all dogs because of factors like age

This is the easiest

the correction will start at the last/highest level used

the Nina Ottosson Dog Worker can be filled with treats to exercise your dog's mind

Ideal for puppies with an adult weigh up to 70 pounds

Starmark Dog Treat Ringer Bone Travel it will not work forTreat Rings are held in place by inner rod and must be chewed to be removed. Treats also fit sideways into toys between toy wall and inner rod. Treat Ring system encourages chewing. Durable nylon material holds up to even the strongest chewers. Challenge rating 4. 1 out of 5. Edible Treat Ring Ingredients: Rice Flour, Wheat Gluten, Vegetable Glycerin, Gelatin, Water, Natural Chicken Flavor, Lecithin, Carrageenan (natural seaweed extract), Parsley.