Specifications:

Power Supply: Battery

Powered By: 3 x AG10 Batteries

Size：5.8cm

Overview:

· Can be used as decoration for bikes, motors or cars.

· Blue LED light increases visibility in the dark or bad weather.

· Easy installation, no special tools needed, can be easily installed and removed.

· No ON/OFF button, bright LED turns on while the wheel or tyre is rotating and turns off when it stops.

· Compatible with valve stem which is up to English standard or American standard, easy operation, just simply screwing on the tire valve stem  and installation is over.

· Tunes in blue, green or Pink, but LED light all in blue.