1. Material: plastic 2. Weight: about 35 grams 3. Size: about 5.3x1.9x3.2 cm 4. Installation position: bicycle seat tube 5. Applicable models: round/flat wheel 6. Features: exquisite shape, light and portable, sealed processing, waterproof effect, electromagnetic induction principle, no need to charge, no battery, automatic light during riding, the faster the speed, the brighter the taillight, reasonable design, both horizontal and vertical placement can 7. Accessories: tail lamp, generator body, manual, cable tie, rubber strapx2, generator body base, tail lamp base, magnet, rubber padx2
