- 3D Miniature Turbo Keychain,it can make Whistle Sound- Durable key chains-- with creative pendant decoration, it is creative and fashionable.- Keychains-- made by premium material, durable and practical in use.- Creative keyring-- designed with car turbocharger shape, fashionable, make your key look different.- Men car hanging keychain-- small in size, easy to carry and use. the key ring is not easy to break.- Durable key ring-- also a perfect present for birthday, valentine's day, mother's day, thanksgiving, christmas, graduation and any occasion.- Turbine will rotate when air is blown into it- Using Details1. Use a straw to blow into the keychain, it can make a whistle sound, and the blade of the turbine will turn quickly.2. Be careful not to scratch the surface with sharp objects.3. If the surface is stained during use, you can use hand sanitizer to clean it directlyPrecautionsPlease note:It can only make a whistle sound, not a turbo-like sound.It is just a keychain model, not a real turbo.