Redbarn Cow Hooves are made from a single ingredient: natural beef hoof, cleaned, trimmed and roasted with no added flavors, colors or preservatives. The dense, curved shape gives dogs a durable surface to gnaw on, and the natural chewing action can help scrape away plaque buildup along the teeth and gums. Each hoof measures around 4 inches and this case contains 75 pieces, making it suited to homes with multiple dogs or dogs that go through chews often. As a natural product, individual pieces vary somewhat in size, shape and color. Fresh water should always be available while a dog is chewing, and any hoof that begins to splinter, crack or develop sharp edges should be taken away and discarded. Supervision is recommended any time a dog is given this or any hard chew.