The R.O.C.K stands for “Rapid Open Combat Knife”. It has a S35VN blade, hard anodized aluminum frames and a titanium lock. The lock is a Strap Lock- which was later renamed the Strong Lock System (SLS). This is our re-invention of the old Italian switchblades. The problem with Italian switchblades was that the lock would wear out easily and cause blade play. We designed this knife with an adjustable lock which takes care of the problem.