Blow into this wooden whistle to produce an authentic train sound. These train whistles are made of wood, making them recyclable, as well as biodegradable. They come pre-printed with a picture of a steam engine on the top and the words "CHOO-CHOO" on the bottom (your logo goes on either narrow side). These wooden whistles are not recommended for children under 3 years. Packed bulk, with an option to put in a drawstring pouch for an additional charge.