Acme Dog Black Pealess Whistle No 210.5 Plastic Ultra High Whistle
Designed for your dog's sensitive hearing by Acme, the inventors of the Silent Dog Whistle.
Easy blowing, High tone dog whistle. This ultra high pitch pealess 210.5 measures 3" in length.
Also available in colors. (connect to them on Acme Whistle Main Page)