Anco Lamb Ear Sticks medium are a great source of high quality protein, vitamins and minerals. Therefore, regular consumption of Lamb may promote muscle growth, maintenance and performance! A great way to include this into your dog's diet is with Anco's Lamb Ear Stick Medium. A great size to be long-lasting, providing your dog with lots of chewing fun. Chewing is great for stimulating a dog's brain, and chewing releases endorphins in dogs (which is the feel good hormone) so a chewing dog = a happy dog!