Precision Measurement: Our Kayoubi guitar string action gauge is meticulously engineered with dual measurement scales and laser-etched metric and imperial markings, ensuring every adjustment delivers flawless playability for acoustic, electric, and bass guitars. Clear Readability: Featuring high-contrast, precisely etched markings on a matte black stainless steel body, this gauge guarantees quick, effortless readings in any lighting, enabling optimal string action without guesswork. Safe for Your Instrument: Designed with smooth, polished edges that ensure durability while preventing potential damage to your instrument, this professional setup tool allows for safe and precise adjustments. Durable & Premium: Crafted from robust stainless steel with a sleek, matte finish, this ruler resists wear and delivers long-lasting performance, ensuring reliable accuracy for every setup session. Essential Accessory: Complete with a stylish vegan leather cover that keeps your ruler secure and scratch-free, it’s the perfect accessory for luthier, guitar techs, and DIY enthusiasts.