The Kershaw 1220 Reverb Frame Lock Knife Carabiner Carbon Fiber/G-10 Handle. Kershaw's Reverb is a lightweight frame lock knife The built-in carabiner clip allows easy attachment to backpacks and harnesses, blade has no flipper or thumb stud to catch on your gear. Its modified drop point blade is made from 8Cr13MoV stainless steel with a two-tone satin/PVD finish and a thumb groove that allows one-handed opening. The handle is built with a carbon fiber overlaid G-10 front scale, and a steel frame lock back. It also includes a deep-carry pocket clip for secure carry in the pocket. Lightweight construction keeps carry weight at a minimum. Built-in carabiner clip for quick attachment to outdoor gear.