Chicago Cutlery Ravenswood 15-Pc Knife Block Set, Black Professional high-carbon stainless steel blades with black polymer handles Exclusive Taper Grind edge technology provides optimum sharpness for precise cutting and is easy to re-sharpen High-carbon stainless steel creates a stronger, harder blade resisting stains, rust and pitting Full metal tang extends from the tip of the blade to the end of the knife forming part of the handle; provides added strength, balance, and control Triple compression stainless steel rivets secure the handles to the blade for increased safety and stability