Feature: 1. Easy to Use: Slide whistle allows for smooth transitions from low to high notes and the sliding mechanism allows for easy tuning with a simple slide of the finger. 2. Widely Used: Slide whistle toy is not only a fun and creative toy, but also a useful educational tool and musical instrument. Suitable for children playtime, family games, and music performances. 3. Bright Colors: Comes in a variety of bright colors that add vibrancy and energy to your daily life, which can be used as a tool for interacting with parents, children, and music loving friends. 4. Fun and Nostalgic: Slide whistle toy is perfect for playing songs, imitating birds, making funny sounds, and creating your own videos or musical compositions. 5. Safe and Reliable: Made of durable and lightweight materials with a smooth edge design, which is safe and reliable for long term use without causing harm to the user. Specification: Item Type: Slide Whistle Material: ABS, aluminum alloy. Package List: 1 x Slide Whistle 1 x Manual