1.Put screw stem implant into cycle spoke.
2.Screw cap tightly.
3.Twine the thick wire on latest spoke tightly first to fix battery box position.
4.Enlace the light string on spoke following.
1,Super bright 2.2m LED light string,contains 20 LEDs.
2,Can be fixed on any cycle with standard spoke with diameter no more than 2.3mm.
3 ON/OFF button to switch on/off the light and change between two light modes(steady or flash).
4,Powered by one AA battery, continuously flash time up to 20h. (not included)
5,Water resistant design, can be used in rainy days.
6,No tools required, fast and easy installation.
7,Make your riding safe and visible at night.
8, Available Colors.-Blue, Green,Pink Red, White.and Multi-Color
|Dimensions||3.91 × 3.54 × 1.18 in|