* Large shatter-proof Thunderer whistle - with deep rolling drawl.
* This extremely durable tool can withstand all weather conditions.
Specification:
* Little interference from wind and weather.
* Bite resistant.
* Loud.
* Deep tone.
* Shatter-proof.
* Longer life than standard plastics.
* Compression molded plastic / polycarbonate whistle.
* Colour Black.