Bicycle Dynamo, Universal Strong Storage Durable Chain Generator for Biking

Description:

- Dynamo: The chain drives the gears to generate electricity and storage into battery.

- Multi Purpose: It is easy to plug USB cable to And this chain can also be a light to ensure riding safety in the dark.

- Portable Usage: The dynamo stores energy by moving without wearing out chain and without energy leakage.

- High Quality Material: This dynamo is made of premium plastic, easy to install, very portable for biking travel.

- Wide Applications: The portable chain is widely suitable for outdoor bikes travel.

Specification:

- Material: Plastic Size Chart: 9.9cmx6.2cm/3.9inchx2.44inch

Package Includes: 1 Piece Dynamo

Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!