The Clip-On Marker from Nite Ize has dozens of uses. One of them being a reflector when bike riding or running. Clip it to your pack and use it as a beacon or blinker to be seen.
PRODUCT FEATURES:
Bright Red LED Illumination – Glow or Flash
Lightweight, flexible design
Passive High Visibility Reflective Pattern
One easily replaceable 2032 3V lithium battery included