Fernando O. Inigo, an inventor from Tracy, California, has developed an innovative product called THE AMERICAN EDGE - GUITAR RAILS, aimed at enhancing the playing experience for guitarists and other stringed instrument musicians. This custom ergonomic grip spacer is designed to prevent unintentional palm muting of the first string, a common issue that can lead to wrist pain and fatigue. Inigo's invention not only focuses on functionality but also offers aesthetic appeal, with customizable options in materials, colors, and textures. Musicians can choose from a range of materials, including soft foam TPE, semi-hard silicone, and even high-end options like diamond plated titanium, allowing for a personalized touch to their instruments. The lightweight and compact nature of THE AMERICAN EDGE also promises to reduce shipping costs for manufacturers, making it an attractive option for production. Currently, the product is available for licensing or sale, and interested parties can find more information through Inigo's contact details or the product's website.