A distinctive blend of function and old world charm, this antique inspired keychain features an oval green jade filigree whistle with intricate detailing and a rich vintage character. Finished with a screw closure key holder, the fully functional design is perfect for teachers, coaches, training, and everyday practicality with timeless style. Green Oval Jade Semi-Precious Gemstone Functional Silver Tone Whistle Measurements: 4.65"L x 0.49"W Nickel Plated Screw Closure Made in USA