1. Glow‑in‑the‑Dark Function
- Made with fluorescent powder or light‑storage ABS material.
- Absorb sunlight or any visible light during the day.
- Emit a soft glow at night, improving wheel visibility and adding a stylish effect.
- No batteries or wiring needed.
🚗 2. Universal Fit
- Standard size: 16 × 12 mm (fits most car, motorcycle, e‑bike, scooter, and bicycle valve stems).
- Compatible with Schrader valves, which are used on most vehicles.

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