Acme City Whistles, 

A smaller version of Metropolitan whistle used by the British police.

Perfect for a college student's key chain or to hang on chain for security.

 Great for dog training, Coyote deterrent and more .

 

 Dimensions: 2- 9/16" Barrel diameter 1/2".

Made in England

These whistles are brand new in factory wrapped tissue paper

see photo 

( Old New Stock)