**** Current Shark Tail size is XL - much larger than recent product offering**** Shark Tails are a great mind-long term chew, depending on chew strength and doggo size! These are large-size presently. Our Shark Tails make an an excellent dental dog treat that carries great nutrition too which isn't limited to omega 3 fatty acids, glucosamine, and vitamin B6. omega 3 and support doggo health. Great for the muscles and joints. Description: 100% Australian Blacktip Shark, No Additives or Preservatives in a 100% Australian Made and printed bag. Packaging: Our treats come in a 100% Australian Made and printed bag, an industry first! Three great sizes 5 Pack Product Source: Manufactured in Australia using 100% Australian sustainable Blacktip Shark.