Ynport Bicycle Handlebar Handle Bar End Plug LED Lamp Safety Safe Bike Flashing Light Cycling Warning Flashlight(1 pair) 2 light modes: fast flashing and steady.Super bright and long lasting. Apply to all bicycle, it is suitable for the tubes which diameter is between 16-23mm, external diameter is 25.2mm. Increase road safety and make your bicycle cool when driving at night. Easy to install, direct bolt-on, shock resistant. Increase road safety and make your bicycle cool when driving at night. Press the inside of the Silicone Lid,the light will be turned on or changed to the power on model.