Welcome to Dude Gadgets!
This is especially designed for the vocational rider or casual cyclist. It is simple to use, long lasting, and safety attached to your wheels. Easy to mount and release, installed in seconds. The gadget remains securely locked in position, even during off-road use. Durable and water resistant and suitable for all mountain bike, road bike, folding bike,etc.
Power Supply: BatteryMounting Placement: Wheel SpokesCertification: cccModel Number: ZH07700Modes: slow quick steadySize: 67x36x13 mmPackage Include: Bicycle Spoke light