Features:
Bicycle hub light can give you safety in night riding;
Decorative hub light, not only for decoration but also for warning;

Specifications:
Material: plastic + LED
Product color: transparent
Size: 90 x 90 x 10 mm/3.54 x 3.54 x 0.39"
Net weight: 52g
Gross weight: 86g
Light mode: slow flash, fast flash and normally on (controlled by the switch button on it)
Applicable bicycles: for bicylce hub which is 35mm or below in diameter

Installing methods:
1. Select appropriate rubber cushion and stick it on the product inner hole;
2. Install the product on the bicycle hub and screw it up;

Package Content:
1 x Bicycle Hubs Light
3 x LR44 Button Cells