Hartz Oinkies Original Mini Pig Skin Twists. Real smoked. Chews for dogs. 7 mini pig skin twists. All natural oven baked dogs love the flavor! Hartz Oinkies Pig Skin Twists Original are all natural, oven baked chews with a savory smoked pig skin flavor that dogs love! As with all chewing products, supervise your dog when giving this chew. Visit our website. Not for human consumption. Hartz, other trademarks and logo design are trademarks of/The Hartz Mountain Corporation. Treated by irradiation. www.hartz.com.