1、DURABLE MATERIALS: Electric guitar tremolo bridge springs are made of excellent metal that is not easily damaged, durable and has a long service life 2、APPLICABLE MODEL: Electric guitar bridge springs are used to tighten the vibrato bridge, suitable for Fender for ST, for Floyd Rose electric guitar models 3、APPLICABLE SCENARIO: Tremolo bridge springs fit most vintage and modern homophone guitars with tremolo bridges and is simple to install and easy to use 4、IMPROVE TREMOLO: Just remove the old tremolo springs and replace them with these new ones. No complex tools or special skills are required. With just a few minutes, you can upgrade your guitar and enjoy improved tremolo functionality 5、VALUE PACK: This set include 6 tremolo bridge springs, giving you ample replacements or spares, whether you're a professional musician who frequently use the tremolo system or a casual player who want to have backup springs on hand