LiteMark DOT-SAE Red 2 Inch x 3.5 Inch High Reflective Prismatic Lenses with Durable Protective Transparent Layer for Safety and Increased Visibility (Pack of 4 Reflectors)

put them on my metal panniers. friends say it lights up my bike when they are behind me at night.

Just what we were looking for.

Overall happy customer.

Worked out very well for post on my trailer

I pasted four of these on a mailbox, and from any angle there is virtually no reflection. It did stick well.

Smaller than expected but exactly what is advertised. So next sure to read the size