Acme Silent Dog Whistle is a practically noiseless dog whistle made from nickel plating that will not disturb the game and yet the sensitive hearing of a dog will be able to pick up the sound with ease and at greater distances than any other type of call. A perfect present for the dog handler, trainer or for home, the Silent Dog Whistle is fully adjustable and can be slipped easily into jacket pocket or attached to a lanyard for instant use Colour: Nickel