EASY TO USE Just Need to Blow, They Can Make a Wonderful Train Whistle Sound, Even with gentle little toddler lungs No Skill. It's Perfect Gift for Kids.
SAFE: Made of High-quality Pine,12 Processes Such as High-Temperature Sterilization, Eco-friendly, Skin Protection and Each individual whistle was wrapped in it's own wrapping, Don't Worry It's Safe for Kids.
LASER ENGRAVING： Blast Chart and beautiful pattern carved by a laser, Blast Chart Describes what the Longs and Shorts Mean, They are good teaching tools.
ENGINEER When you give it to your little one, They're Professional train Engineers. Stimulate their creativity and imagination.