Features:
14 LEDs with 8 colors， double-sided.
Light with 30 different gorgeous patterns shining by turns and changing every 4 seconds.
Pattern is clear and complete when speed is up to 20km/h.
Equipped with light sensor and movement sensor， flash only in the dark and action.
Powered by one AAA battery (not included).
Easy installation.

Note: The bike wheel spoke light can be used in rain but can not be soaked in the water for long time.

Specifications:
Quantity of LED: 14
Material: Plastic
Product size: 10.8 * 7.2 * 1.7cm / 4.3 * 2.8 * 0.7in
Product weight: 33g / 1.2oz
Package size: 15 * 10 * 2cm / 5.9 * 3.9 * 0.8in
Package weight: 50g / 1.7oz

Package including:
1 * 14-LED Bike Wheel Spoke Light