Used by more professionals throughout the world than any other. No copy can duplicate the double-locking design of the Floyd Rose Tremolo System that allows you to lock your guitar in tune at the nut and at the bridge. The Floyd Rose Tremolo System is engineered like no other tremolo system. Its high quality steel parts are precision-made in Germany to exacting specifications, and it's?áavailable in a variety of nut sizes that will fit practically any electric guitar. The tremolo kit contains the bridge, springs & claw, mounting studs, and all hardware necessary for installation.?á?áLocking nut sold separately.