Classy-Back Light Waterproof Bicycle Speedometer Multifunctional Smart Touch Screen Road Bicycle Speedometer

High-concerned chemical : None Origin : Mainland China Specification 1 : Odometer for Bicycle Specification 2 : Bicycle Odometer Specification 3 : Bicycle Odometer Waterproof Specification 4 : Odometer for Road Bicycle Specification 5 : Speedometer Bicycle