Knives: blades made of stainless steel of highest quality that, associated with efficient heat treatment sub-zero, offers to the knives great resistance to wear the wire. Reinforced polycarbonate handles with fiberglass, has good resistance to impacts. Sharpener: the uniform grooves ensure a better performance when sharpening the knife. Carving fork: stainless steel thickness blade provide high resistance to the product, avoiding damages. Knives certified by NSF, National Sanitation Foudation, internationally recognized organization by the practices of consultancy, inspection and training, aimed at ensuring the health of food, water, air and environment. Dishwasher proof.