Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Does its job well

I have a 1995 Chevy K1500 Z71. Apparently, my truck came with suburban mirrors, which made it difficult to find the correct towing mirrors for my truck. Finally I found that these were the right ones and ordered them. They work very well, although I rarely use the passenger side mirror. I found it was much more important to have the driver view, and the passenger side really only comes in handy when changing lanes. I tow a 24 foot bumper pull (33ft 7in tongue to bumper) and these mirrors allow me to see all the way to the back of the trailer. They hold very firm to my mirror, and I hardly notice any vibrations, if at all. Highly recommended!