Relentless Knives Great Lakes Series Set. Curved titanium blade with micro-serrated carbide cutting edge. Perpetual Edge technology. Each knife is made of aerospace grade titanium and features a hard carbide and crushed diamond power strip creating a perpetual edge knife that sharpens as it cuts. True Grit ABS handle. Black leather belt sheath. Boxed with hanging tab. Package Contents: Relentless Knives Great Lakes Series Set