Bamboo is one of the most sustainable materials in the world, and bamboo trees release more than 35% more oxygen into the environment than any other tree or plant on earth. They have very rapid re-growth, and their roots are long and strong so they help to hold the soil together and prevent erosion.  The SimplyFido Bamboo Monkey is certified non-toxic and chemical free, colored only with plants and minerals using our own PureWaterWash^TM process, and made from bamboo rayon.  Each Monkey is silky soft and comes with a squeaker inside and tough rope for added play.