Richardson Sheffield Kitchen Knives are made from Surgical Steel, which are magnatic in nature also. These surgical steel knives are food safe, contamination registant, extra durable, the sharpness last for highly longer period. Sharpness and Precision: Surgical blades are incredibly sharp and maintain their edge well. This sharpness allows for precise cutting, whether you’re slicing, dicing, or chopping ingredients. The predictability of a sharp blade ensures better control during food preparation.