Dharma Dog® pure wool toys are fun your dog can sink their teeth into. Dental Health: Our wool blend allows your dog’s teeth to sink in all the way to the gums. Coarse wool fibers have jagged edges to scrape away food and plaque. We use safe, non-toxic dyes and there are no synthetic fibers that may be harmful if ingested. Odor-Resistant: Wool releases moisture into the air before bacteria can develop and start to smell. It is mold and mildew resistant. Sustainable: Wool decomposes in as little as 4 months. Manmade fibers are the textile form of plastic and can take thousands of years to decompose. Fair Trade: Our verifiable fair trade standards mean that the Nepali women artisans who make Dharma Dog toys receive great wages and substantial labor protection.