I worked for a time as a mechanic on trucks and changed tires with the old tire levers. That is a job for at least two people. I gut this kit after seeing the video online and it works very well. I was able to change the tires on my Motor-home by myself. That's 235/80 on a 22.5" rim. I am impressed with the tool design.I cannot speak to the durability as i have not used it much. I assume that these low cost vesions may be more prone to the castings breaking as apposed to the $300-500 versions available through tire supply places, but so far I am impressed.