Mirror sticks into the end of the handle bar, and you expand the shaft by tightening a bolt with a hex wrench. That's my feedback. Works good

These mirrors took less than a minute to install at the ends of my handlebars on my Boogie eBike. I used the allen wrench included and they screwed right in and stayed put through some very bumpy rides. It's so nice to be able to have these mirrors that don't move around (like the previous mirror I had installed on the handlebar itself). Others have said these inhibited their movement on the handlebar grips but I didn't notice any issues and didn't hit these with my hands at all. Now I feel…

I mostly ride country roads and these mirrors are great for seeing traffic approaching from behind me. Fully adjustable. Good view for a small mirror. Easy to install into end of handlebar.

The mirrors are fine. They would be perfect if they fit the holes on my handlebars. The shafts on the mirrors are not thick enough to bind and stay in the bars. Not the mirrors fault. Most likely my issue… 4 stars because I could not determine the diameter (mirrors) from the ad.

Easy to attach, very clear image. Stable while riding on the road. Cars no longer sneak up on me. Should have gotten one years ago.

Only real issue is no installation instructions or even hints. You gotta figure it out yourself. Not intuitive at all. But this style mirror best for bikes.

They shipped quickly, installed in minutes, and where exactly as described. They are a great value.The only thing: I wish that I had bought the larger size. Also, if they touch anything they need to be readjusted. Nevertheless I’m very happy with them and they have save my neck in traffic a few times already.

Installed on my Grandson's new bike so he could get use to watching for traffic behind him. Stays in place well, yet still easy to adjust.

I've put a few hundred miles on my bike with this mirror. Good quality glass, and once you tighten the mount is doesn't move around. Convex lens gives a side angle, but not so much that it distorts the picture. Can still see clearly far behind you. Well worth the price.

Nice nice mirrors, easy to install, but I question the wisdom of sending mirrors in an envelope. One of mine was smashed right out of the package. I only planned on using one, but this just doesn’t make sense.

So easy to install, I cut an X into the end of my grip and push them through the rubber. As well as these work, they are not fool proof. I got a flat tire and and when I flipped the bike over to remove the front wheel, I neglected to fold the mirror in and I broke it off at the pivot. Pilot error. just ordered another pair.

Bought these based no the reviews. I measured the diameter of my Bitrix Moto handles bars, which was about 16mm. These slid in place and tightened up snug. Took about 2 minutes to install. The mirror is able to swivel into position but can be tightened down so they won't move when going over a bump. Very happy with the purchase and would recommend these for anyone looking to install mirrors onto the ends of their bike handlebars.

In the last 30 years I had many, many bike mirrors. These are absolutely the best I ever owned. They are Easy to install, secure and do not become loose or vibrate. Great adjustability makes getting the perfect view effortless. The mirrors provide perfectly clear and slightly wide angle view, which is a must in a side view mirror.

Very useful to have two mirrors on a road bike for busy streets. These ones install quickly. The mirrors pivot very smoothly, but the design makes them easy to bump out of place. The tightening screw on the side is cleverly placed to mitigate this minor issue.Tough to find a better value.

Excellent quality, Easily installed and adjusted. Stays put and does not wobble. Excellent mirror. Lets me look behind the bike with just a glance. I used the pouch to cover the mirror when not riding. Keeps the mirror nice and bright. The pouch is held on with a clipee.One possible improvement, and not even worth knocking off a star, is that the mirror could be slightly convex. The field of view would be slightly larger behind the bike. But like I said, still 5 stars the way it is.

These bike mirrors are great! Better than the ones I paid twice as much for at a bike shop. They don't stick out very far and they provide excellent views to both the side and the rear while riding my bike so good. I bought another set for my wife's bike and will buy more for the other bikes in our household. They're great for riding, safe on sidewalks and on the roads and being aware of what's around you. You can't go wrong with these!

Quality seems good. Only rode once since installing. The weather has been bad. As of now would recommend and buy again. They can be bulky and take up space.