Zanies® Knotted Rope Bones are a great way to satisfy a dog or puppy’s urge to chew. Natural cotton rope dyed with vegetable dyes creates colorful, long-lasting toys in a variety of sizes and shapes that dogs will love. Theses are not only fun to play with, they also help keep dog’s teeth and gums clean and healthy! Available in the sizes listed below. Sizes may be combined for quantity discounts.