Hartz Hearty Twists Chew & Treat Combo - 4 CT. Chicken Flavor. 4 chewy treats for small/med dogs less than 50 lbs. New! Hartz and other trademarks are trademarks of The Hartz Mountain Corporation. Supplemented for healthy joints and bones. Guaranteed analysis: Crude protein (minimum) - 4.0%. Crude fat (minimum) - 1.0%. Crude fiber (maximum) - 1.5%. Moisture (maximum) - 14.0%.