Guitar Tremolo Bridge,Tremolo System with Roller Single Locking Vibrato Bridge Tailpiece for ST Guitar Replacement. (black) EASY TO INSTALL electric guitar bridge comes with screw, springs and other mounting accessories, no extra tools needed, very easy to install and operate. FANTASTIC AUDIO QUALITY This is a fantastic tremolo for manually creating a true vibrato.This is highly controllable within its range of motion and requires little force to operate. STURDY & ANTI-RUST This electric guitar bridge is made of copper-zinc alloy, steel and acrylic, good texture with fine workmanship, solid, firm and to use, ensures a long service time. CONTROLLABLE AND CONVENIENT This is highly controllable within its range of motion and requires little force to operate. GREAT ACCESSORY Great guitar accessory part, quite suitable for ST guitar. Specification: Features: This product is made of copper-zinc alloy, steel and acrylic, good texture with fine workmanship, solid, firm and to use, ensures a service time. Comes with screw, springs and other mounting accessories, no extra tools needed, very easy to install and operate. This is a fantastic tremolo for manually creating a true vibrato. This is highly controllable within its range of motion and requires little force to operate. Great guitar accessory part, quite suitable for ST guitar. Specifications: Condition: Brand New Material: Copper-zinc Alloy+Steel+Acrylic Weight: Approx. 230g / oz Bridge Size: Approx. 8.4 * 4.9 * 4cm / 3.3 * 1.9 * 1.6in(Total), 10.5mm / 0.4in(String Spacing / Spring Installation Hole Spacing) Backboard Thickness: Approx. 2mm / 0.1in Saddle Thickness: Approx. 5mm / 0.2in Bridge Mounting Screw Size: Approx. 2.7cm / 1.1in Optional Color: Gold, Black, Silver Package list: 1 * Bridge 6 * Bridge Mounting Screw 1 * Tremolo Bar 1 * Claw 2 * Claw Mounting Screw 3 * Spring 1 * Wrench Note: The color of spring fixed claw is shipped randomly, and make sure you will not mind before ordering.