ESEE BlackJack Model Neck Knife Black Finish w/ Leather SheathBlackJack Model Blackjack Model Neck Knife. Blackjack knives comes in CPM About identical in size. " overall. 3" CM Stainless blade. One piece red powder coat finish stainless construction. But either way the izula was a much more useful size and comfortable. The Izula or the Izula 2 are also good knives. [HOST] › Forums › Backpacking/DIY Hunting Equipment › Gear. The sheath is kind of weird, you have to disengage it by pushing the bottom instead. . New sheath has excellent retention and blade was spotless. [HOST] › Blackjack-ModelNeck-Knife › product-reviews. The ESEE CR is a great little knife that I carry at all times. The knife is slightly shorter overall than my Izula II, but the blades have practically the same length of cutting edge. The grinds. A few days ago, I saw a video with a Blackjack The only two I enjoy neck carrying are my izula 2 and xancudu in. If you look really hard you can find a LT Wright. On the other hand the came verrrry decently.