Ardent Reel Butter Oil is a high-performance synthetic oil developed by Ardent Reels specifically for fishing reel components. Ardent Reel Butter Oil is a 100% Full Synthetic product with specially engineered additives to provide superior, long-lasting lubrication for any model fishing reel. Applying Ardent Reel Butter Oil to ball bearings, spool shafts, and other wear points in your favorite reel on a regular basis will ensure a smoother, quieter, and high-performance experience. -100% Full Synthetic Oil -Super Low Viscosity -Compatible with All Materials -Anti-Gumming Agent -Consistent Temperature Performance -Made in the USA