Materials: Plastic Size: 8*6cm/3.15*2.36in Color: As shown in the figure Product features: 1. Creative design: Using the principle of wind-powered illumination, allowing the small fan/dragonfly to rotate and emit light while riding, increasing the fun of riding. 2. Multi-functional decoration: Not only can be used as a decoration for electric bikes and motorcycles, but can also be installed on helmets to enhance individuality. 3. Energy-saving and environmentally friendly: No need for batteries, completely relying on wind power generation. 4. Night safety: The wind-powered illumination effect makes riders more visible at night, increasing riding safety. 5. Easy installation: Conveniently and quickly install on vehicles or helmets, without affecting daily use. Package includes: 1 pc Luminous decoration