ULFR Must-Have Bike Helmet Mirror For Cyclists By Fully Adjustable & Universal Bicycle Helmet Mirrors (2-Pack) | Crystal Clear Rear View, Lightweight & Durable Design For Road & Mountain Bikes

This is an interesting product at a very reasonable cost; there are two mirrors in the package for the price of one and i purchased it thinking it would add to my bicycling safety. But I just couldn't get it to work. It fit on my helmet fine and I could adjust it to sort of see what was behind me but any movement of my head would mean that the mirror was no longer showing what was behind me. You have to keep your head in just one spot for the mirror to show you what is on the road behind you. It should probably be bigger and convex so that it has a significantly wider field of view, sort of like the outside rear view mirror on your car. Plus with my eyes and age related presbyopia I had a very difficult time maintaining focus, I'd focus on the mirror and what was on the mirror would be out of focus or I'd focus on distance and the mirror would be out of focus. Hope you have better luck.

Great 2 Pack Helmet MirrorNice bike helmet mirror, easily attaches to the inside of my bike helmet. It comes as a two pack and is mounted with self-adhesive Velcro patches.Pros: The mirror gives me a lets me see what’s going on behind me and is very easy to adjust. As I said, previous, the 2 pack is a great idea. Easy to follow instructions were included.Cons: If you want to adjust the angle of the arm itself, you need a Phillips screwdriver, although a key would probably do it.

It's usable, for me It gets a little tricky finding the sweet spot for seeing the traffic behind me. With this said it's a lot better than nothing.

It is just what I was looking for it takes a bit to get used to it. Very easy to install And thanks for keeping me updated with the shipping a follow up.

The mirror does not show the traffic clearly. I can see the side of my head well, but the traffic behind me is blurry. I do not wear glasses. I think the mirror is slightly convex

Very convenient. increases safety while riding since you do not have to turn your head. I definitely recommend it.

Easy to use, attach to inside of helmet!The helmet mirror arrived quickly with simple instructions on the packaging.

Nice. Just what I needed. Glass mirror easy to see behind you. Two in the package.