These string trees are a nice improvement over the stock ones on my customized Strat. The chrome finish matches my Musiclily Wilkinson locking tuners and seems to make tuning a little smoother as the rounded edges do not catch on the strings like the previous ones. Installation is simple, detune the strings a few turns to reduce the tension on the strings and trees. Unscrew the old ones and install the new ones. Both are the same size so no problem on which one to put on what strings. Re-tune the guitar and you are done. Remember to take your time tuning up the high strings to ensure you don't break a string. Definitely a good way to improve tuning ease and stability for only a few bucks. First picture shows before replacement, the second two are after installing the Musiclily trees. Highly Recommended!