Set of 2 roller string trees for electric guitar. NickelBlack finishes for a functional and discreet look on a variety of headstocks. Key benefits Reduce tuning friction: smooth rollers let strings pass with minimal resistance, helping tuning remain more stable during bends and tremolo use. Protect strings and nut: rolling contact lowers wear at the headstock, reducing the chance of breakage and grooves forming in the nut. Maintain consistent break angle: keeps and B strings seated properly over the nut for improved resonance and sustain. Clean, lowprofile appearance: available finishes blend with chrome or black hardware for a neat, professional look. What they do Each unit replaces a stationary string tree with a pair of smoothrolling posts, allowing strings to move laterally with less friction while preserving the downward angle over the nut. Suitable for electric guitars that use headstock string trees to control break angle on the strings. Compatibility and fit Designed for electric guitars that accept screwmounted string trees on the headstock. Set of 2 covers common positions used for B and E or for adjacent string pairs. NickelBlack finishes suit instruments with chrome or black hardware; verify headstock hole spacing before installation. Materials and performance Metal construction with lowfriction rollers provides durable contact points and consistent performance under normal playing conditions. Simple, reliable design aimed at improving tuning behavior and string longevity without altering playability. Installation and use Screwmounted to standard headstock locations; installation can be completed with basic hand tools. Can be used as a straight replacement for existing string trees or added where additional roll is needed. Practical scenarios Lead guitar player using a vibrato arm who needs strings to to pitch more reliably after heavy tremolo use. Session guitarist wanting to reduce string breakage and maintain consistent tone when frequently bending the B and E strings. Luthier or hobbyist performing a setup who wants to upgrade a vintagestyle headstock to lower friction across the nut. What to check before buying Confirm your headstock uses screwmounted string trees and that the hole spacing matches your instrument. Choose the finish that matches your guitar hardware: Nickel and Black are included in the set. This set of 2 roller string trees provides a straightforward mechanical upgrade to reduce friction at the headstock, improve tuning stability, and protect strings during regular play.