Each ZooLEY teether is made with custom certified organic cotton and untreated, naturally antibacterial Maple wood. The new line of soothing teethers was inspired by the ?wild? animals found in nature: the elephant, turtle and monkey. The ZooLEY line is made responsibly in China. New ZooLEY animals are filled with eco-friendly corn fiber making them machine washable (remove ring before washing) and have a gentle rattle inside. The wooden ring is attached to the animal using Velcro making it easy to remove ring before washing.