Open Range Water Buffalo Bully Sticks are 100% pure water buffalo derived from grass fed water buffalo and raised without antibiotics, steroids, hormones or preservatives. Water buffalo meat (not to be confused with Buffalo/Bison which is a different species) is very lean and high in protein and contains less than half the fat of beef and 40-60% less cholesterol. It is a good source of essential nutrients and minerals. They are 100% digestible to ensure absorption of the proteins & minerals that support a healthy immune system. A naturally nutritious, healthy, and safe alternative to rawhide.