Stainless Steel Sheepdog Whistle This is a sheepdog whistle made of stainless steel. It's a whistle used by shepherds to control sheepdogs. I bought a few as souvenirs in New Zealand, and this is one of the spares. It's unused. Since it's quite old, please check the photos for details. Everything in the photos is included. Professional shepherds mainly use plastic ones, but this stainless steel one is more hygienic if you wear it around your neck. For those who are about to welcome a dog into their family, or those who want to control their dog in a cool way, how about it? I use this whistle as a command to call my dog back when my voice can't reach in a wide area.