USB Rechargeable Bicycle Riding COB Tail Light Mountain Bike Bicycle LED Safety Warning Light Flashing Rear Light

Product Information
Color: red, white, red and blue to light, red and white to light, red and blue powder
[Battery]: Adopt new rechargeable polymer Li battery (3.7V, 500MAH)

[Size]: length 10*width one 1.95*width two 2.7*height 1.8cm
[Applicable]: Seat tube diameter: 15-31.8mm

Package
Bicycle tail light*1