All components of the Peak Vise are high quality stainless steel, hardened tool steel, and brass, with aluminum for the jaw tube link arm. The vise includes a brass tipped set screw and Allen wrench to allow the vise to break down flat for travel. The hardened jaws can hold hooks from size 2 streamers down to #24 midges and the positive stop cam action allows repeatable gripping from the first fly to the last. Pedestal base is super heavy with a rounded pocket. Lifetime warranty on materials and workmanship.