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NTJ (4 Pack) LED Motion Activated Bike Bicycle Wheel Valve Stem Cap Tire Light (Blue)

Name: Bicycle Valve Light
Material: Plastic/metal
Race Speed: 10km/Hour
Length: 6.25cm
Usage: wheel LED Light
Setup: simply screw on your tire valve stem
Valve Cap: American Standard / European Standard Supported
Circuit: Independent Circuit Design, Light control circuit, sensor circuit, LED circuit
Power by: 3*AG10cell batteries (include)

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