1、Double vibrato system usually has two parts: neck lock and bridge vibrato system 2、In addition to pressing down the handle, the double shake can also lift the handle up to make the string sound increase or decrease semitone, full tone or two or three full tone 3、With high‑quality springs and cranks can play wonderful vibrato 4、Small size, easy to carry and store, convenient to use and with good performance 5、With great workmanship, can perfect replacement for the old one 1 x Guitar Nut2 x Nut Screw 3 x Spring 1 x Spring Snap2 x Pull Spring Screw 2 x Positioning Column1 x Joystick1 x Vibrato Claw2 x Hex Wrench Item Type: Tremolo Bridge SystemMaterial: MetalOptional Color: Chrome silver, electrophoresis black, gold