The supplier says: “The lamb ear is a single-ingredient and serves as both a great chew and crunch treat. We recommend these ears for small breeds and puppies who are teething. Lamb ears are low in fat but high in protein, which helps pups to build strong bones, muscles, joints, and teeth. They are also beneficial for sensitive stomachs or for dogs who have food allergies to beef and poultry. The lamb ears measure approximately 4 x 1.5 x 1 inches, and there will be a slight variation to each ear.”