 And when you flip that flipper tab, there's a spring that kicks open the rest of the knife. That was Ken Onion's first foray into the market, that speed-safe technology. You see it on a lot of Kershaw knives. Anyway, that was his big break in the beginning. But since then, he's had a lot of innovative designs from just the blade shapes and how knives work to the locking mechanisms of folding knives or different materials that are used to