Tremolo springs for Fender Strat's, works with American and Mexican Strat's. I have both and have tried them in both varieties. It does exactly what it supposed to do, apply pressure so the tremolo bar stays in place. I have my moods where I want it to swing freely, and that is usually dependent upon mood as well as the guitar being played. Recommended if you are looking for this type of spring, i would buy them again.

Perfect for keeping your bar where you want it.

These Fender springs are very hard and stiff, but they need to be that way to apply enough pressure to hold the tremolo arm in a horizontal position. I tried using softer, more elastic springs, but they don't apply enough pressure to hold the arm in place.<br /><br />The first time I tried a Fender spring, I screwed the tremolo arm in as far as it would go, and it compressed the spring permanently. The second time I tried it, I screwed the tremolo arm in until I felt just enough resistance to hold the arm in a horizontal position. Everything worked perfectly! When I removed the tremolo arm, the spring was still at its original length.<br /><br />Apparently, the key to success with these springs is to avoid over-tightening the tremolo arm so that you don't over-compress the spring. If you tighten the arm just enough to get the job done, everything works exactly as Fender intended! Moreover, if you avoid over-tightening the arm, you won't have to worry about stripping the threads, which is a much more serious problem.

These are so good and strong I actually cut &#34;em in half and they do the job perfectly. My Vibrato arm stays right where I left it every time.<br />Bought two bags for a rainy day.<br />Steve B.

These little springs are the ones you get with your Stratocaster new however, they get lost and the tremolo arms don't stay in place but use the spring and it works as it was designed..

These are the same springs that you get with your american standard strat. I am not sure why Fender, after you just put down $1000 for a guitar, only feels they need to give you one easily lose-able spring for your tremolo, but they do.