We cut and dehydrate these bison bones for your furry family members. There is nothing added. Just pure grass fed bison. Natures best! We have never had a dog complain about our bones yet. The bones come in various sizes and shapes. The average bone is $2 each. If ordering several we will try to average out the size as best we can or contact us with special instructions if you have specific needs. or select a dino bone for your big friend. Don't be shy on your order we always have a good supply of our dog bones.