Designed by Michelin-starred chef Thomas Keller. 3-piece set includes: 3 1/2" paring knife, 8" chef's knife, TAI walnut knife block. Forged from Swedish Damasteel RWL34 powdered steel, an extraordinarily fine-grained, high-alloy steel known for its excellent edge strength, hardness and corrosion-resistance. Ultra-precise 6-stage heat treatment creates a Rockwell hardness rating of 61 +/-2, allowing the blade to take a remarkably sharp edge. Hand polished and hand sharpened by expert blade-smiths. Durable black polymer handles are contoured for a comfortable and ambidextrous grip. Polished bolster promotes a comfortable chef's grip. Angled stainless-steel end cap adds beauty and balance. NSF International Certified. Lifetime Warranty against manufacturer defects. Wash knives with warm water and a little detergent, rinse carefully and dry with a towel. USPTO Patented Design.