43mm Alloy Guitar String Locking Nut Durable alloy locking nut designed for tremoloequipped electric guitars. Compatible with Roses electric guitar tremolo bridge lock. Available in Golden, Silver, or Black finishes. Size approx 43 x 16 x 15 mm, package weight approx 35 g. Key benefits Improves tuning stability when using double tremolo systems by locking strings at the nut. alloy construction for long term durability and stable performance. Smooth exterior finish reduces hand fatigue during extended playing sessions. Simple installation and broad compatibility with most electric guitars that use a tremolo bridge lock. Designed for intermediate and advanced players who want a reliable upgrade to their instrument. What it does Locks the strings at the nut to minimize slippage and detuning caused by heavy tremolo use or aggressive techniques. Provides a secure contact point that helps preserve tuning after dive bombs, vibrato use, and other tremolo effects. Adds a subtle aesthetic upgrade thanks to available metallic finishes. Specifications Material: Alloy Color options: Golden, Silver, Black Size: approx 43 x 16 x 15 mm Package weight: approx 35 g Package includes: 1 Set of Guitar Double Swing Upper Pillow Compatibility and installation Compatible with tremolo bridge locking systems; specified for use with Roses electric guitar tremolo bridge lock. Fits most electric guitars that accept a 43 mm locking nut. Confirm measurements before installation. Easy to install with standard tools. Slight adjustments may be required to match your instrument and string spacing. Use scenarios Live performance: Keeps tuning stable during songs that use heavy tremolo effects, ensuring consistent pitch throughout a set. Studio recording: Reduces the need for retuning between takes, helping maintain consistent tone and intonation during tracking. Practice and technique work: Ideal for players practicing dive bombs, wide vibrato, or other techniques that stress tuning stability. Notes Please allow 1 to 3 mm variation due to manual measurement. Actual color may differ slightly from photos due to monitor differences. Confirm compatibility with your guitar model and tremolo system before installation.