Introduced in 1990, the Delica was the first its kind on the market. The folder opened up the knife market to lightweight performance, one-hand opening pocketknives that just about everyone could afford. Refinement has been ongoing and countinual with tweaked ergonomics and refined blade steels. The new Delica 4 has screw construction making cleaning and adjusting easier. This particular model has a flat ground blade and vivid purple FRN handles.