New Mantis Vicious Circle Polished with Black Pearl Onlay Foldling Circle Knife Necklage + Includes a Free Zombie Hunter Survival Pocket Knife The Mantis Vicious Circle is an innovative and stylish folding neck knife designed by Grant and Gavin Hawk This unique design is meant to be worn around the neck and the blade is exposed with a unique locking mechanism along the side Features Neck Sling with bailout key. Handle Material Handle Material Stainless Steel, Polished with Black Pearl onlay Includes a Free Zombie Hunter Survival Pocket Knife