Our 12" Braided Beef Jerky is made of beef esophagus, which is full of glucosamine and chondroitin. Our 6" Braided Beef Jerky is made of beef esophagus , which is full of glucosamine and chondroitin. Our 12" grass-fed, free-range bully is our thickest and most robust offering. Our Double Knot Bully Stick is made of free-range, grass-fed bully and is woven in a unique shape guaranteed to bring hours of chewing fun.