WAG Kangaroo Tubes are made from 100% windpipe and sure to get your doggos howling. Roo is perfect for both the allergy-prone and the healthy doggo. Not only that, theyre soft for pup teeth with a crunch that lasts the day. Kangaroo Tubes are loaded with glucosamine for sprightly joints and endless energy. This is what pipe dreams are made of and are sure to get your doggos howling.