1Zinc Alloy Construction: Crafted from premium zinc alloy, this guitar bridge saddle is built to withstand the continuous tension and pressure of guitar strings, ensuring long lasting functionality and performance. 2Enhanced Tone and Sustain: The guitar roller bridge saddle set of 6 pieces serves as a replacement part for electric guitars, effectively preventing string breakage, improving tone and sustain, and maintaining consistent guitar tuning. 3Adjustable Height: The height of the guitar bridge saddle can be adjusted within a range of 5 to 14mm/0.2 to 0.6 inches. The rear screw on the electric guitar saddle allows adjustment of the saddle's front to back distance. 4Easy Installation and Adjustment: The electric guitar bridge saddle is easy to install and adjust, thanks to its user friendly design that allows for effortless installation on most electric guitars. 5Versatile Compatibility: These bridge saddles are compatible with 3, 4, 5, 6, 7 string electric guitars, cigar box guitars, and banjos, offering multiple options for players seeking reliable and versatile components. 6 x Guitar Bridge Saddles 12 x Screws 1 x Hex Wrench