As well as being all natural, Pig Ear Strips are Grain and Gluten free and contain no artificial colours, flavours or preservatives. As pig ear strips for dogs are smaller in size they are a great alternative for smaller sized dogs. Great for dog dental health, pig ears help to reduce tartar and plaque build up while chewing.Key BenefitsGrain and gluten free pig ear treats for dogs100% natural, no artificial colours, flavours or preservativesGreat for dog dental health as they help to reduce tar..