Made from Kangaroo Trachea, Roo Tubes are a perfect treat for the allergy-prone and the healthy doggo. Kangaroo Tubes are loaded with glucosamine and chondroitin, giving your dog springy joints and endless energy Because of its texture and length, it's a soft and chewy choice for puppy teeth and seniors alike. These treats are sure to get your doggos howling and wanting more, while keeping their joints in check.