Pet's Choice Pharmaceuticals 031CW-PZ-12 12 in. Premium All Natural Dog Pizzle Chews Bully sticks are inspected and approved by the USDA&#47;FDA. Bully sticks are dried &#40;baked&#41; with no preservatives&#44; no chemicals and are low odor. Made of 100&#37; beef from free-range&#44; grass-fed bulls&#44; they are easily digestible&#44; providing Bully sticks are a healthy alternative to other dog chews; perfect for smaller dogs&#44; but a great Bully sticks are on average 5&#47;8&#34; thick at one end.