I needed this to remove the wiper arms on my 2003 VW Golf. The drivers side arm was particularly difficult to remove. It was so hard in fact, I had to modify this puller to get the arm off. This modification is the sole reason for dropping the rating to 4 stars.Overall the quality of this puller is 5 stars. As mentioned by others the cone that is shown in the picture as being metal is in fact plastic. To me this is absolutely no issue at all though and is likely a rolling design change, which explains why the picture still shows it being metal. The force on the cone is minimal so there really is nothing wrong with it being plastic.The puller arms themselves are made of very strong steel and held up very well when pulling my seemingly welded on wiper arm. All of the stressed parts are strong and well made so this puller is likely to be the only one you will ever need for both battery connections and wiper arms alike.There is one problem I had with this puller. Had my arm not been so stubborn to get off it likely wouldn't have been an issue. The problem is the handle for turning the screw. What ever they made it from it is very strong. I didn't bent it no matter how hard I cranked on it. Conversely though, I couldn't generate enough torque to get the arm to break free. Also, the hood of my car was in the way so I had a hard time getting at it at certain points in the rotation. The solution was pretty basic for me, but would be nearly impossible without a lathe and a welder, which most people of course do not have.I cut the tee handle from the puller and then I drilled a hole in the end of a bolt so I could put the bolt only the shaft of the tool. I then welded it to the tool shaft. This allowed me to use a wrench or socket to turn the puller shaft instead of the tee handle. Once I had a socket on there I was able to easily get the torque I needed to break the arm free. Had this puller been of low quality materials this additional torque would have destroyed it. It did not break though, it held up just fine. Which makes me wonder why Lisle doesn't have a hex on top instead of the tee handle. I'm guessing they are concerned that people would over torque it and as strong as this is, I'm sure it is not of unlimited strength.I do think that in 90% or more of all situations this puller would work perfectly just the way it is built. In my case, living where they salt the heck out of the roads, things can be pretty hard to get apart. As an example though the passenger side popped off with no issue at all.I'd recommend this to just about anyone.