The Civivi Elementum II Button Lock C18062P-8 BB is a great EDC pocket knife. A true to friend to all! The round shapes and amazing movements will ensure that everyone will appreciate this knife. This is the second version of the Elementum Button Lock. The knife is a little smaller than the original Button Lock. It also features a flipper, so you open the Elementum II even faster. The button lock mechanism locks the blade completely when open and when partially when closed.