main function This is a stainless steel pigeon whistle. When the young birds return home and feed, the pigeon flute is used. The young birds fly in the pigeon sheds to eat and exercise repeatedly to form a conditional reflex. Easy to carry Super mini size and lightweight, you can carry it anywhere and anytime. you can carry it anywhere, anytime. Safety material Made of high quality stainless steel, sturdy and durable. All finishes are non-toxic, safe and Eco-friendly. Suitable for Perfect whistle to train pigeon, dog, cat, etc. Perfect whistle to train your pigeon. Nice decorationElegant color ans stylish design make it a great decor for you. Specification: Material: Stainless steel Color: Silver Size: 7.9 x 2cm / 3.11 x 0.79 inch(Approx.) Package Included: 1 x Pigeon whistle 1 x Lanyard Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.