RS7121BB Real Steel Perix Crossbar LockThe RS7121BB is a mid sized folding knife with a 3. 5" Nitro V blade in black PVD, offering excellent edge retention and corrosion resistance in a compact 4. 5" closed package. The black G10 handle provides reliable grip in wet conditions, while the thumb stud and pocket clip make it practical for daily carry or field work. Nitro V's toughness makes this steel forgiving for users who don't maintain their edges constantly, ideal for European EDC where