DescriptionMade of high quality, the whistle is durable and long lasting use. With the delicate and chic design, it is great gift for your friends or colleagues who have pet to train. It can make ultrasonoc sound, thus help birds cultivate some habit through it.Features- Color: Golden. - Material: Aluminium alloy. - Size: About 4.7x1x1cm. - Made of for durable and long-lasting use. - With the ultrasonoc sound design, suitable for training birds, dog, parrot, pigeon and so on. - Novel design, fashion cabinet, full of materials, exquisite workmanship. - With the delicate and chic design, it is great gift for your friends or colleagues who have pet to train. - After polishing through advanced pickling technology, can effectively protect the whistle body, not easy to scratch.