Introducing our brand-new CobraTec Trapper Hidden Release Automatic, which is pending patent. The blade is a drop point D2 steel, and the handle is made of textured bone with steel bolsters. To deploy the blade, raise the bolster, and to release the lock, raise the bolster once again. CobraTec is thrilled to provide a secret release auto for the Trapper, a knife that has been around for a long time.