Flat 3D Printed Whistle - Set of 4

A really loud, flat whistle that you can comfortably carry in your wallet, put on your keychain, or carry in your pocket.  Don't be fooled by their small size!  These whistles are loud and high pitched.  They are perfect for scaring away would be attackers, or for helping you find members of your group who got split up. 

You get a set of 4 (3mm, 4mm, 5mm, 3mm mini).  Lots of colors to choose from.

These whistles are printed to order.

***This product was designed by @PhoneDesigner on printables.com.  Find his design at https://www.printables.com/model/495173-flat-pocket-whistle-files.