Environmentally Friendly Wood Material - This whistle set is made of high-quality wood, with a smooth surface, durable, and well-made, which is very suitable for children to play. High-Quality Party Supplies - This train whistle can be used for various party noisemakers, such as birthday parties, Halloween, Christmas or theme parties. Easy to Use - The edge of each whistle is polished, just blow it, and it will make a cool and loud whistle sound, similar to a train whistle. 4-Tone Train Whistle - Blow the 4-tone train whistle to produce the sound of an old-time locomotive; it sounds like a real train sound, which can add a lot of fun to children's parties. Great Gift - This train whistle set can be applied to various party noisemakers, such as birthday parties, Halloween, Christmas or theme parties. If you are looking for a great accessory for a children's train set or engineer costume, you have found it!