Features: It is a blow will send a clear voice; after the injection of water, according to the number or size of water according to the intensity of the blow, it will make different sounds, like the sounds of birds singing wonderful songs. It can be blown directly as a whistle or it can make different sounds of bird calls according to how much water is filled. Practical as a signal for gathering, confirming orientation, and calling for help. Bird shape design, creative and applied for kids and children. Suitable for camping, hiking, mountain climbing, cross country and other outdoor activities. Specification: Material: Terracotta Surface Technology: Painted Style: Pastoral Modeling: Animals Production Method: Handmade Size:6*7cm Color: Random Package Included: 1pc x whistle Note： Please allow slight dimension difference due to different manual measurement. Please note that slight color difference should be acceptable due to the light and screen.