Colorful flash LED creative whistle with the shape of nipple is 8cm*5cm long It adopts electronic components and plastic material powered by three AG10 batteries which have been installed (batteries are replaceable) There are six color choices for nipple-type creative whistle including red yellow green blue purple and transparent color The whistle has three LED lights and hand control switch with twinkling light The creative whistle is made of non-poisonous and odorle material so it is safe and nontoxic Besides the product is manufactured by adopting modern manufacturing technique with the manufacturing proce strictly monitored thus to ensure it will not be polluted in the proce The creative whistle is very interesting suitable for adults children and fashionable people It can be used as a little prop to enliven the atmosphere and you can wear it on the chest Dear buyer,Welcome to our store. You can contact with us to get more detail of the goods .Have a nice day!