Genuine Floyd Rose tremolo bridge springs. Set of 3. I'm selling these because I switched to springs from another company. I removed them from a guitar I just bought, so they're almost unused. They're a bit stiff, suitable for rock. If you feel your current springs are too soft, you can easily change the feel of your playing just by swapping the springs. Also, they can cause unstable tuning when they deteriorate, so consider replacing them regularly!