Metal Dog Puppy Training Whistle High Pitched Tool Dog Walking (Choose Colour) This whistle is not a silent dog whistle. Condition is Brand New. Item Description: Material: Alloy Size: 8*45mm Due to the difference between different monitors, the picture may not reflect the exact colour of the item. We guarantee the style is the same as shown in the pictures, but not the same performance on different bodies as on the model.?