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 Available in a variety of sizes and shapes that dogs will love Help keep dog’s teeth and gums clean and healthy! Available in 8.5″, 10″, 14″, 18″, and 16″ Big Dog sizes. Sizes may be combined for quantity discounts.See the Specifications tab for more product information.