Tough: Built from aircraft grade 6061 aluminum, not stamped stainless steel, or thermoplastic, so it can stand up to the same punishment that you do. Patented "Under the Brim" mounting position, Stainless Steel hardware, and embedded allen tool. Light weight: only 2ozDimensions: 6 x 3 x .5 in Necessary: Superior under brim patented design securely holds the light on the helmet where you put it, where you need it. Adaptable: Fits most firefighting helmets, both traditional and modern styles....