Used for plastic protective boxes MW Security FORTKNOX . Can open MW Security DLS (Double Locking System). The protection system is made of two metal clips. When metal clips cling to the special detacher the lock opens. These protective safers can only be opened by this special detacher, because the lock mechanism is different from the Alpha systems and many others. Substitutes or Chinese counterparts of this detacher do not exist. Also Spider Wrap with DLS exist.