100% lamb lung and nothing else! A complimentary air dried treat for your dog No additives, preservatives, artificial flavours or colourings. Once opened store in a cool, dry place and use within 8 weeks. Feeding guide: We recommend no more than 8 lunks a day for a medium sized dog. You can break the treats into smaller bits to satisfy even the greediest of dogs. Suitable for puppies from 8 weeks old all the way up to the oldies.