HeroNeo&reg;&reg; 16 LED Motorcycle Cycling Bike Bicycle Tire Wheel Valve Flashing Spoke Light NEW 16 LED Car Motorcycle Cycling Bike Bicycle Tire Wheel Valve Flashing Spoke Light 16Pcs single color LED (Red, Blue, Yellow and Green),Flash 30 kinds of pattern changing one by one No button waterproof design,Quick release and easy to installation Battery work speed above 20km/hour, Power by 3 x AAA battery (Not include) Size (L*W*T)16.3 x 3.7 x1.4cm/6.41"x1.45"x0.55"(approx)