This Native American Bird Whistle is designed and tuned to help imitate the sound of a Cardinal/Red Bird or Mocking Bird! These are hand made out of hardwood by us and come on a leather cord (cord colors may vary - cotton available upon request) to wear around the neck! The whistle is approximately 3/4" X 2 1/2" (19mm X 63mm). Check out our demo videos! Each include playing instructions and cheap domestic shipping within the USA and its territories as well as super inexpensive global shipping. See our shipping page for more info.