It is a wonderful product for people who like to DIY their own pictures.

Features:
Easy installation and water resistance.
It consist of 216 high visibility RGB LED lights.
With the sensor, the power will be out automatically when you are not riding.
The speed of 15k/m can be better to display patterns completely, and the patterns will be changed every 5 seconds.
You can download pictures from the internet and design your pictures.
The cartoon or video can be shown via the product.
It is applicable to 26 inches wheel.

Specifications:
Material: ABS
Light Color: Colorful
Mode: 100 modes and 5 GIF pictures
Light Number: 216 RGB LED lights
Waterproof: IPX6
Battery: 1 * 18650 Battery
Working Hour: 15-20 Hours
Item Size: 50.5 * 2cm / 19.88 * 0.79in
Item Weight: 149g / 5.27oz
Package Size: 30.5 * 17.5 * 4.5cm / 12.01 * 6.89 * 1.77in
Package Weight: 655g / 1.44lb

Package List:
1 * Bike Wheel Light
1 * Sensor
1 * SD Card
1 * Card Reader
1 * Downloader
1 * Screwdriver
20 * Nuts
3 * Connection Plates
1 * Battery 
1 * Battery Case
1 * Charger
10 * Cable Ties
1 * User Manual
1 * Box