Item Type: Guitar Tremolo Stabilizer Material: Brass, Iron Package List 1 x Guitar Tremolo Stabilizer 4 x Screws 1Solid Brass: Guitar tremolo stabilizer is made of solid brass, high strength, high hardness, strong chemical corrosion resistance, sturdy and durable. 2Maintaining Pitch: Tremolo stopper improves the stability of a floating tremolo bridge, bringing a solid stabilizing base to keep your guitar in tune. 3Eliminating Tremors: Guitar tremolo stabilizer can return your full floating tremolo to its exact zero neutral position, eliminating flutter and sag. 4High Adaptability: The tremsetter works on for Floyd Rose equipped guitars, and will compatible with any style of fulcrum tremolo including for Fender, for Gotoh, and for Ibanez. 5Strong Performance: The tremolo stabilizer greatly improves guitar performance by stabilizing your tremolo, tremolo system spring easier to return to the equilibrium position after use.