Treat 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. nEdible Treat Ring Ingredients Rice Flour, Wheat Gluten, Vegetable Glycerin, Gelatin, Water, Natural Chicken Flavor, Lecithin, Carrageenan natural seaweed extract , Parsley. nCaution With all chew products and treats, pets should be supervised as no product is completely indestructible. Pieces smaller than the mouth may present a choking hazard. When wet, treats may stain fabric and upholstery. Features n Crude Protein Min. 25.0%n Crude Fat Min. 1.5%/Max 2.5%n Crude Fiber Max. 2.0%n Moisture Max. 15.0%n Calories Per Treat 14.8n Feed as a treat. This product is intended for intermittent or supplemental feeding only.Item Details n Dimensions 5.7 x 5.5 x 2.2n Color White