The Boker Optima is a pocket knife that can take rough handling and use. The exceptionally thick blade made of 440C is stainless, hollow ground and securely fastened by the Backlock. The blades of the Optima series are all exchangeable, so that the knife can be quickly adapted to the respective requirements. The exchange-blade system transforms this one-part knife into a multi-functional knife. The handle body is sintered from a piece of nickel silver, the scales are made from traditional stag.