This is a versatile, lightweight whistle which is suitable for all dog breeds. Comes complete with an adjustable black sailing cord lanyard and velvet carrying pouch. Precision made from a solid piece of high-grade aluminium with no rivets or joins using the very latest equipment to give it the trademark Logan Whistle sound quality - clear, crisp tones which carry over very long distance. Once produced, the Logan A1 Turbo is then anodised for a taste free finish. Our two-hole Turbo design affects the resonance or 'voice' of the whistle to create deeper tones that carry further. Testers have also reported that it is exceptionally easy to use. Weighs 7 grams; measures 4.8cm (1 7/8 inches) across at the widest point.