Owfeel 1 Pair LED Valve Cap Light Safety Tire Strobes Wheel Light - Green Stick Light Schrader Bicycling Cycle Gear 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 Green Stick Style