Description: 【Quality Materials】: Crafted from quality aluminum alloy, ABS plastic, and stainless steel, this slide whistle ensures longevity and a premium feel 【Double Tone Markings】: Features C and G key markings for easy playability, making it suitable for both beginners and experienced players 【Innovative Design】: Equipped with an aluminum alloy flute sound and a track style slide rod for smooth operation, along with a safe ABS mouthpiece 【Versatile Musical Fun】: Great as a professional yet fun musical instrument toy for adults and kids alike; ideal for parties, games, or as an educational tool 【Great Gift Idea】: An great choice for birthdays or festivals; this portable instrument is great for music lovers looking to enjoy playing on the with or at family gatherings Specification: Material: Aluminum Alloy Size Chart: 24.5cm/9.65inch Package Includes: 1 Slide Whistle Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.