Rogue River Tools Aluminum Wool is oil free, long strand wool that is crumble resistant and made from the highest quality material. Ideal for fine wood finishes, cleaning glass, or brightening dull metal surfaces. Reusable and designed to easily produce and maintain a professional looking finish. This material is so gentle it can be used directly on glass surfaces without sprays. On metal surfaces, the Aluminum wool brightens by removing only the oxidized layer of metal without scratching even softest metals. Ideal for use with the sensitive surfaces found in aviation and marine cleaning, polishing, and rebuilding. Excellent for marine or outdoor uses since worries about steel wool fibers rusting or staining exterior surfaces are not an issue. Contains one skein or wad of continuous fibers that can be unwound and cut for specific usage. USA product, Made in Europe!