• Extremely bright to improve security
• 110 meter distance visible 
• Suitable for night cycling, night running and any otheroutdoor activity
• Environmental and economical USB rechargeable bike taillight
• Attaches in seconds without tools required
• Fit for most kinds of bikes
• USB line for 2 hours to fill the battery
• Material: plastic
• Size: 4.6 x 3 x 2cm
• Color: different color option, randomdelivery