Check out this handy chart which shows the difference in tones and volumes for each Logan whistle.
Logan make amazing shepherds whistles. They are suitable for all types and breeds of dogs.
Logan whistles are made from a range of materials - Stainless Steel, Brass, Aluminium and Delrin (non-metallic modern polymer). Depending on the qualities you look for, the type and size of area, and responsiveness of your team, there is a Logan Whistle that's perfect for you.
Logan whistles are well loved and used by many shepherds throughout New Zealand.