Your dog is in for a huge treat when it gets its paws on this Jumbo Bone. It is a whole USA-sourced natural beef femur bone from the hind leg; this means that you get two knuckles on each end, along with the center bone. What a deal, 3 in 1! Measuring approximately 16-18” long, with no artificial ingredients, this product is best for medium to large dogs. The Jumbo Bones have meaty pieces on the whole bone and are dipped in liquid smoke. All Jones’ products are 100% grown and made in America.