All our bully sticks are 100% all natural and are free from any additives or preservatives. At Pet Professional's Choice all natural means 100% all natural. Your best friend will surely enjoy this high quality treat and you will enjoy the savings. Pet Professional's Choice Brand 12" BRAIDED BULLY STICKS are the best available. Bully Sticks are an all natural treat that contains no additives or preservatives. Bully Sticks are a great way to maintain your dog's teeth and gums while satisfying their desire to chew. Bully sticks are an enticing treat all dogs adore! Bully sticks are loaded with flavor, one bite and your dog will be hooked! These bully sticks are inported from South America.