Firstly, this whistle is made of PLA material, aligning with the concept of sustainable development.

The overall design is likely based on a Christmas candy cane, featuring classic red and green stripes as if it were plucked from Santa's bag. The surface may be adorned with subtle textures, enhancing both tactile sensation and visual appeal.

When you blow the whistle, the internal design is crafted to produce a clear and pleasant sound.