There might be little color difference between object and picture.
Screw the cap light on Schrader valve, Presta valve adapters included.
Ultra-bright Red LEDs automatically turn on with motion activated while you ride, LEDs automatically turn off when stopped.
With safety strobing lights.
6pcs AG10 batteries included (3pcs for each light), good for 150 hours of constant use.
Fashion Blue Diamond Style.
2 x LED Valve Cap Lights 2 x Presta valve adapters
1 Pair LED Valve Cap Light Safety Tire Strobes Wheel Light - Blue Diamond Schrader Bicycling Cycle Gear - B00F6PQTZO