18Pcs Yootones Tremolo Bridge Saddle String Lock Insert Blocks Compatible with Floyd Rose Electric Guitar Bridge Saddle (Black)

["Tremolo bridge saddle insert block is compatible with most Floyd Rose tremolo bridge saddle.","The guitar bridge saddle is made of metal, is well made and sturdy.","It can help prevent string breakage, improving tone and sustain and keeping your guitar in tone.","Easy to install.A good replacement part for broken or old one.","The guitar hardtail bridge is suitable for guitar lovers, beginner practicing. Nice part for guitar lovers to DIY guitar."]