Fit System 3891 Deluxe Universal Clip-on Trailer Towing Mirror

I just used these on a 1,200 mile trip picking up a small camper. I'm happy with their performance but here's a list of things I found important:- The mirrors are convex so the image they produce is smaller than the regular mirror on the drivers side and about the same as the one on the passenger side. This wasn't a problem for me - I liked the extra view but had to remind myself of the difference when backing up. I've attached an image to show the view they provide.- I have a Toyota 4Runner and the factory mirrors are tapered, getting thinner as you measure from inside to outside. These mirrors attached fine and held pretty well. They did gradually work their way towards the outer edge. It became noticeable after about 700 miles so I pulled over and reinstalled them. In the future I'm planning to place some silver duct tape on the factory mirror frame next to the inside strap clamp so as soon as the mirror starts to slip towards the outside there will be a gap between the tape and the mirror mount.- when installed I found one time the clamp that grabs the edge of the factory mirror wasn't properly gripping the frame even though when I had started it was properly in place. This means as I was adjusting the straps and tightening the ratchets it popped off. Just something to be aware of. Not a product flaw, just my inattention.- I expected them to work their way loose so I put a sturdy velcro strap around the base of my factory mirrors and then used zip ties to attach the mirrors to the strap. I figure if one did fall off I at least wouldn't loose it though I could end up dinging the paint on my 4Runner.....- My girlfirend is going to help me modify a velcro strap to secure the inner ratchet strap to the inside edge of the factory mirror frame. I'm thinking this may prevent the mirror creeping out and falling off.To sum this up - these mirrors worked great and allowed me to see around a wider camper. They need to be checked regularly just like you would check the hitch and lites regularly. Simple enough and I don't think I'll ever loose one, but if I do I'd be happy to get another one of these to replace it.

We recently bought a 2015 F150 and a travel trailer camper. Unfortunately we were unable to find an F150 in the style we wanted that came with the telescoping mirrors so we figured we'd find them aftermarket. Well, since the new F150 is a new redesign, it turns out that aftermarket manufacturers have not designed mirrors for this new model yet. So after combing through the internet we settled on this Fit System Universal mirrors. We have not been disappointed. We recently got back from a 1500 mile round trip and the mirrors performed very well. It took a few minutes to figure out how to tighten and release them, but once we got that under our belts, it was very easy to get them on and off. They fit very securely and we never had a problem with the loosening or vibrating, even at 75 mph on the Interstate while passing semis.I have seen some reviews where folks have said that the straps have broken. I can see this happening if you overtighten them. The mirrors use a ratcheting system to tighten the straps. The should be tightened until they are secure. The straps are plastic. Even though they appear to be plenty strong, the ratcheting system is easily strong enough to snap the straps if you get overzealous. I suggest that once you get the straps in place, ratchet a couple of times and test for a snug feel. Once they are snug, leave them alone and they should hold very well.Great deal the price. I highly recommend them.

After reading the reviews of other designs popping off on the highway, I decided to try this one because it has top and bottom clasps (albeit only one strap). Pro's include easy mounting, tight fit, and a huge increase in visibility back there. Cons - the strap likes to let go unless you are careful with the little rubber ring that you fold and double under the strap into. Its like the little loop on your belt that you put the excess into, but when the rubber strap is not folded it can slip out of the buckle and the mirror comes off.Another Con is that the plastic teeth on the ratchet strip easily and the strap can slip loose from the top as well over time as it wears. I can make it slip, and see that it is already stripping after one trip, but it is holding.Finally, if you are a Jeep Wrangler owner then you will find that the spacing of the brackets will not allow you to put one strap inside the mirror post, and one outside as would be ideal. They both need to be outside and on the taper which causes the straps to be uneven and less secure.For the cost, it is a reasonable solution and will provide a lot of visual range help. I will probably put a safety strap on them in case they pop off at highway speed though, given the light duty strap design.

We pull a small camper with our Jeep Grand Cherokee and felt we needed better mirrors for safety. This mirror works perfectly for our needs. Now we can keep an better eye on who's behind or coming around us. Unlike cheaper strap-on tow mirrors, this one features ratchets so you can adjust the fit quite well and keep the mirror in place much more securely. We always check the fit when we stop and should it need tightening it is so easy to do without removing all the straps. When you are ready to remove the mirror there's a quick release feature so that they come right off. The Just be sure to store them in a bag or box because there's a small strap that could get lost if you don't take care. We are very happy with this tow mirror and have already recommended it to some of our camping friends.