American Orthodontics takes great pride in manufacturing our Wildlife Series elastics using top quality latex tubing with perfect thickness. Our proprietary technique results in precision cutting and guarantees consistent pulling forces. American Orthodontics offers our most widely used sizes of prepackaged elastics in Wildlife Series patient packs which feature endangered and threatened animals from all over the world. These patient packs appeal to patients of all ages, especially those with a concern for ecological issues. By faithfully wearing their elastics, patients can feel they are doing their part in preserving and protecting these animals. This additional incentive may be just the motivator to get patients to wear their rubber bands. And showing that you care about the environment is a great way to promote your practice. Choosing the right elastic. We determine the force of elastics at three times the starting diameter. The activation level should be three times the starting diameter. For example, if the activation level is 9/16" measured, the correct elastic would be 3/16".