Stratus Culinary Cascade by Ken Onion Cook's Knife, 4-Inch, Silver Designed by award winning knife designer Ken Onion Blade is constructed of durable American made high carbon 420HC Stainless Steel - retain edge and sharpness Handles are constructed of dishwasher safe durable glass filled polypropylene Impervious to moisture and are heat resistant Dishwasher Safe - Hand Wash Recommended