Easy install with motion sensors,
LED, and replaceable built-in watch batteries.
When it is dark and your wheels start to move, they flashing light up
creating a solid disk of light that appears to hover above your wheels.
When you stop they will switch off to save battery power.
Size: L 90mm x W18mm
5 LED light in Red & Blue color
12 kinds of pattern automatic control
Automatic Light-Controlled Skip Flashing
Material: Clear Hard Plastic in waterproof
Battery: AG13 X 3pcs
5LED Flashing Tire Light X 2pcs
AG13 X 6pcs