Inspired by this rich artistic heritage, Spyderco's Zome knives are unique variations of our lightweight models, which feature injection-molded fiberglass-reinforced-nylon (FRN) handles. The handles are molded in a light base color and then individually hand dyed by expert Japanese artisans. Using a technique reminiscent of traditional hiki-zome (brush dyeing), various colors of dye are hand brushed onto the handle to create distinctive, one-of-a-kind patterns. Like Japan's classical dyeing methods, the special dyes used completely permeate the FRN to permanently color it. This Endura 4 Lightweight boasts all the defining features of its breed, including a full-flat-ground VG-10 stainless steel blade, a sturdy back lock mechanism, skeletonized stainless steel liners, and a four-position pocket clip.