A smaller crunchy, stimulating chew, Classic Trachea is rich in glucosamine and chondroitin. The 3" size is ideal for smaller dogs of all ages. Snack Station treats come in clear, apothecary-style containers that are sealed to ensure peak freshness. They're 100% free of any by-products, artificial flavours or additives. This & That Snack Station uses only the highest quality, human-grade, federally inspected proteins.